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17α-Ethynyl-3β-androstanediol

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Chemical compound

Pharmaceutical compound

17α-Ethynyl-3β-androstanediol
Clinical data

Other names	HE-3539; HE3539; Ethinylandrostanediol; 17α-Ethynyl-5α-androstane-3β,17β-diol; 5α,17α-Pregn-20-yne-3β,17-diol
Routes of administration	By mouth
Drug class	Estrogen
Identifiers
IUPAC name (5S,8R,9S,10S,13S,14S,17R)-17-ethynyl-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,14,15,16-tetradecahydrocyclopenta[a]phenanthrene-3,17-diol
CAS Number	13611-96-6
PubChemCID	45042186
Chemical and physical data
Formula	C₂₁H₃₂O₂
Molar mass	316.485 g·mol⁻¹
3D model (JSmol)	Interactive image
SMILES C[C@]12CCC(C[C@@H]1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@]4(C#C)O)C)O
InChI InChI=1S/C21H32O2/c1-4-21(23)12-9-18-16-6-5-14-13-15(22)7-10-19(14,2)17(16)8-11-20(18,21)3/h1,14-18,22-23H,5-13H2,2-3H3/t14-,15?,16+,17-,18-,19-,20-,21-/m0/s1 Key:CKAXZOYFIHQCBN-KVECEQEYSA-N

17α-Ethynyl-3β-androstanediol (developmental codeHE-3539; also known as17α-ethynyl-5α-androstane-3β,17β-diol) is asynthetic estrogen and a17α-substituted derivative of3β-androstanediol which was never marketed.^[1]^[2]

17α-Ethynyl-3β-androstanediol shows highaffinity for theestrogen receptorsin vitro (IC₅₀Tooltip Half-maximal inhibitory concentration values of 16 nM forERα and 126 nM forERβ relative to values of 8 nM at ERα and 7 nM at ERβ forestradiol), and activates the estrogen receptorsin vitro (EC₅₀Tooltip Half-maximal effective concentration value of 0.9 nM relative to 0.002 nM for estradiol).^[2] It also has weak affinity for theandrogen receptorin vitro (IC₅₀ = 277 nM relative to 15 nM fordihydrotestosterone), but doesn't appear to activate the receptor.^[2] 17α-Ethynyl-3β-androstanediol may produce17α-ethynyl-3α-androstanediol and5α-dihydroethisterone (5α-dihydro-17α-ethynyltestosterone) asactive metabolitesin vivo.^[2] In accordance with itsin-vitro estrogenic activity, 17α-ethynyl-3β-androstanediol produces estrogenic effects likeuterotrophy andtesticular atrophy in animals.^[1]

Esters of 17α-ethynyl-3β-androstanediol have been developed and studied.^[3]

17α-Ethynyl-3β-androstanediol is apositional isomer of 17α-ethynyl-3α-androstanediol, and is a metabolite of this compoundin vivo viametabolic inversion of the position of the C3hydroxyl group.^[2] It may be involved in thebiological activity of 17α-ethynyl-3α-androstanediol.^[2]

v
t
e
Affinities of estrogen receptor ligands for the ERα and ERβ
Ligand	Other names	Relative binding affinities (RBA, %)^a		Absolute binding affinities (K_i, nM)^a		Action
Ligand	Other names	ERα	ERβ	ERα	ERβ	Action
Estradiol	E2; 17β-Estradiol	100	100	0.115 (0.04–0.24)	0.15 (0.10–2.08)	Estrogen
Estrone	E1; 17-Ketoestradiol	16.39 (0.7–60)	6.5 (1.36–52)	0.445 (0.3–1.01)	1.75 (0.35–9.24)	Estrogen
Estriol	E3; 16α-OH-17β-E2	12.65 (4.03–56)	26 (14.0–44.6)	0.45 (0.35–1.4)	0.7 (0.63–0.7)	Estrogen
Estetrol	E4; 15α,16α-Di-OH-17β-E2	4.0	3.0	4.9	19	Estrogen
Alfatradiol	17α-Estradiol	20.5 (7–80.1)	8.195 (2–42)	0.2–0.52	0.43–1.2	Metabolite
16-Epiestriol	16β-Hydroxy-17β-estradiol	7.795 (4.94–63)	50	?	?	Metabolite
17-Epiestriol	16α-Hydroxy-17α-estradiol	55.45 (29–103)	79–80	?	?	Metabolite
16,17-Epiestriol	16β-Hydroxy-17α-estradiol	1.0	13	?	?	Metabolite
2-Hydroxyestradiol	2-OH-E2	22 (7–81)	11–35	2.5	1.3	Metabolite
2-Methoxyestradiol	2-MeO-E2	0.0027–2.0	1.0	?	?	Metabolite
4-Hydroxyestradiol	4-OH-E2	13 (8–70)	7–56	1.0	1.9	Metabolite
4-Methoxyestradiol	4-MeO-E2	2.0	1.0	?	?	Metabolite
2-Hydroxyestrone	2-OH-E1	2.0–4.0	0.2–0.4	?	?	Metabolite
2-Methoxyestrone	2-MeO-E1	<0.001–<1	<1	?	?	Metabolite
4-Hydroxyestrone	4-OH-E1	1.0–2.0	1.0	?	?	Metabolite
4-Methoxyestrone	4-MeO-E1	<1	<1	?	?	Metabolite
16α-Hydroxyestrone	16α-OH-E1; 17-Ketoestriol	2.0–6.5	35	?	?	Metabolite
2-Hydroxyestriol	2-OH-E3	2.0	1.0	?	?	Metabolite
4-Methoxyestriol	4-MeO-E3	1.0	1.0	?	?	Metabolite
Estradiol sulfate	E2S; Estradiol 3-sulfate	<1	<1	?	?	Metabolite
Estradiol disulfate	Estradiol 3,17β-disulfate	0.0004	?	?	?	Metabolite
Estradiol 3-glucuronide	E2-3G	0.0079	?	?	?	Metabolite
Estradiol 17β-glucuronide	E2-17G	0.0015	?	?	?	Metabolite
Estradiol 3-gluc. 17β-sulfate	E2-3G-17S	0.0001	?	?	?	Metabolite
Estrone sulfate	E1S; Estrone 3-sulfate	<1	<1	>10	>10	Metabolite
Estradiol benzoate	EB; Estradiol 3-benzoate	10	?	?	?	Estrogen
Estradiol 17β-benzoate	E2-17B	11.3	32.6	?	?	Estrogen
Estrone methyl ether	Estrone 3-methyl ether	0.145	?	?	?	Estrogen
ent-Estradiol	1-Estradiol	1.31–12.34	9.44–80.07	?	?	Estrogen
Equilin	7-Dehydroestrone	13 (4.0–28.9)	13.0–49	0.79	0.36	Estrogen
Equilenin	6,8-Didehydroestrone	2.0–15	7.0–20	0.64	0.62	Estrogen
17β-Dihydroequilin	7-Dehydro-17β-estradiol	7.9–113	7.9–108	0.09	0.17	Estrogen
17α-Dihydroequilin	7-Dehydro-17α-estradiol	18.6 (18–41)	14–32	0.24	0.57	Estrogen
17β-Dihydroequilenin	6,8-Didehydro-17β-estradiol	35–68	90–100	0.15	0.20	Estrogen
17α-Dihydroequilenin	6,8-Didehydro-17α-estradiol	20	49	0.50	0.37	Estrogen
Δ⁸-Estradiol	8,9-Dehydro-17β-estradiol	68	72	0.15	0.25	Estrogen
Δ⁸-Estrone	8,9-Dehydroestrone	19	32	0.52	0.57	Estrogen
Ethinylestradiol	EE; 17α-Ethynyl-17β-E2	120.9 (68.8–480)	44.4 (2.0–144)	0.02–0.05	0.29–0.81	Estrogen
Mestranol	EE 3-methyl ether	?	2.5	?	?	Estrogen
Moxestrol	RU-2858; 11β-Methoxy-EE	35–43	5–20	0.5	2.6	Estrogen
Methylestradiol	17α-Methyl-17β-estradiol	70	44	?	?	Estrogen
Diethylstilbestrol	DES; Stilbestrol	129.5 (89.1–468)	219.63 (61.2–295)	0.04	0.05	Estrogen
Hexestrol	Dihydrodiethylstilbestrol	153.6 (31–302)	60–234	0.06	0.06	Estrogen
Dienestrol	Dehydrostilbestrol	37 (20.4–223)	56–404	0.05	0.03	Estrogen
Benzestrol (B2)	–	114	?	?	?	Estrogen
Chlorotrianisene	TACE	1.74	?	15.30	?	Estrogen
Triphenylethylene	TPE	0.074	?	?	?	Estrogen
Triphenylbromoethylene	TPBE	2.69	?	?	?	Estrogen
Tamoxifen	ICI-46,474	3 (0.1–47)	3.33 (0.28–6)	3.4–9.69	2.5	SERM
Afimoxifene	4-Hydroxytamoxifen; 4-OHT	100.1 (1.7–257)	10 (0.98–339)	2.3 (0.1–3.61)	0.04–4.8	SERM
Toremifene	4-Chlorotamoxifen; 4-CT	?	?	7.14–20.3	15.4	SERM
Clomifene	MRL-41	25 (19.2–37.2)	12	0.9	1.2	SERM
Cyclofenil	F-6066; Sexovid	151–152	243	?	?	SERM
Nafoxidine	U-11,000A	30.9–44	16	0.3	0.8	SERM
Raloxifene	–	41.2 (7.8–69)	5.34 (0.54–16)	0.188–0.52	20.2	SERM
Arzoxifene	LY-353,381	?	?	0.179	?	SERM
Lasofoxifene	CP-336,156	10.2–166	19.0	0.229	?	SERM
Ormeloxifene	Centchroman	?	?	0.313	?	SERM
Levormeloxifene	6720-CDRI; NNC-460,020	1.55	1.88	?	?	SERM
Ospemifene	Deaminohydroxytoremifene	0.82–2.63	0.59–1.22	?	?	SERM
Bazedoxifene	–	?	?	0.053	?	SERM
Etacstil	GW-5638	4.30	11.5	?	?	SERM
ICI-164,384	–	63.5 (3.70–97.7)	166	0.2	0.08	Antiestrogen
Fulvestrant	ICI-182,780	43.5 (9.4–325)	21.65 (2.05–40.5)	0.42	1.3	Antiestrogen
Propylpyrazoletriol	PPT	49 (10.0–89.1)	0.12	0.40	92.8	ERα agonist
16α-LE2	16α-Lactone-17β-estradiol	14.6–57	0.089	0.27	131	ERα agonist
16α-Iodo-E2	16α-Iodo-17β-estradiol	30.2	2.30	?	?	ERα agonist
Methylpiperidinopyrazole	MPP	11	0.05	?	?	ERα antagonist
Diarylpropionitrile	DPN	0.12–0.25	6.6–18	32.4	1.7	ERβ agonist
8β-VE2	8β-Vinyl-17β-estradiol	0.35	22.0–83	12.9	0.50	ERβ agonist
Prinaberel	ERB-041; WAY-202,041	0.27	67–72	?	?	ERβ agonist
ERB-196	WAY-202,196	?	180	?	?	ERβ agonist
Erteberel	SERBA-1; LY-500,307	?	?	2.68	0.19	ERβ agonist
SERBA-2	–	?	?	14.5	1.54	ERβ agonist
Coumestrol	–	9.225 (0.0117–94)	64.125 (0.41–185)	0.14–80.0	0.07–27.0	Xenoestrogen
Genistein	–	0.445 (0.0012–16)	33.42 (0.86–87)	2.6–126	0.3–12.8	Xenoestrogen
Equol	–	0.2–0.287	0.85 (0.10–2.85)	?	?	Xenoestrogen
Daidzein	–	0.07 (0.0018–9.3)	0.7865 (0.04–17.1)	2.0	85.3	Xenoestrogen
Biochanin A	–	0.04 (0.022–0.15)	0.6225 (0.010–1.2)	174	8.9	Xenoestrogen
Kaempferol	–	0.07 (0.029–0.10)	2.2 (0.002–3.00)	?	?	Xenoestrogen
Naringenin	–	0.0054 (<0.001–0.01)	0.15 (0.11–0.33)	?	?	Xenoestrogen
8-Prenylnaringenin	8-PN	4.4	?	?	?	Xenoestrogen
Quercetin	–	<0.001–0.01	0.002–0.040	?	?	Xenoestrogen
Ipriflavone	–	<0.01	<0.01	?	?	Xenoestrogen
Miroestrol	–	0.39	?	?	?	Xenoestrogen
Deoxymiroestrol	–	2.0	?	?	?	Xenoestrogen
β-Sitosterol	–	<0.001–0.0875	<0.001–0.016	?	?	Xenoestrogen
Resveratrol	–	<0.001–0.0032	?	?	?	Xenoestrogen
α-Zearalenol	–	48 (13–52.5)	?	?	?	Xenoestrogen
β-Zearalenol	–	0.6 (0.032–13)	?	?	?	Xenoestrogen
Zeranol	α-Zearalanol	48–111	?	?	?	Xenoestrogen
Taleranol	β-Zearalanol	16 (13–17.8)	14	0.8	0.9	Xenoestrogen
Zearalenone	ZEN	7.68 (2.04–28)	9.45 (2.43–31.5)	?	?	Xenoestrogen
Zearalanone	ZAN	0.51	?	?	?	Xenoestrogen
Bisphenol A	BPA	0.0315 (0.008–1.0)	0.135 (0.002–4.23)	195	35	Xenoestrogen
Endosulfan	EDS	<0.001–<0.01	<0.01	?	?	Xenoestrogen
Kepone	Chlordecone	0.0069–0.2	?	?	?	Xenoestrogen
o,p'-DDT	–	0.0073–0.4	?	?	?	Xenoestrogen
p,p'-DDT	–	0.03	?	?	?	Xenoestrogen
Methoxychlor	p,p'-Dimethoxy-DDT	0.01 (<0.001–0.02)	0.01–0.13	?	?	Xenoestrogen
HPTE	Hydroxychlor;p,p'-OH-DDT	1.2–1.7	?	?	?	Xenoestrogen
Testosterone	T; 4-Androstenolone	<0.0001–<0.01	<0.002–0.040	>5000	>5000	Androgen
Dihydrotestosterone	DHT; 5α-Androstanolone	0.01 (<0.001–0.05)	0.0059–0.17	221–>5000	73–1688	Androgen
Nandrolone	19-Nortestosterone; 19-NT	0.01	0.23	765	53	Androgen
Dehydroepiandrosterone	DHEA; Prasterone	0.038 (<0.001–0.04)	0.019–0.07	245–1053	163–515	Androgen
5-Androstenediol	A5; Androstenediol	6	17	3.6	0.9	Androgen
4-Androstenediol	–	0.5	0.6	23	19	Androgen
4-Androstenedione	A4; Androstenedione	<0.01	<0.01	>10000	>10000	Androgen
3α-Androstanediol	3α-Adiol	0.07	0.3	260	48	Androgen
3β-Androstanediol	3β-Adiol	3	7	6	2	Androgen
Androstanedione	5α-Androstanedione	<0.01	<0.01	>10000	>10000	Androgen
Etiocholanedione	5β-Androstanedione	<0.01	<0.01	>10000	>10000	Androgen
Methyltestosterone	17α-Methyltestosterone	<0.0001	?	?	?	Androgen
Ethinyl-3α-androstanediol	17α-Ethynyl-3α-adiol	4.0	<0.07	?	?	Estrogen
Ethinyl-3β-androstanediol	17α-Ethynyl-3β-adiol	50	5.6	?	?	Estrogen
Progesterone	P4; 4-Pregnenedione	<0.001–0.6	<0.001–0.010	?	?	Progestogen
Norethisterone	NET; 17α-Ethynyl-19-NT	0.085 (0.0015–<0.1)	0.1 (0.01–0.3)	152	1084	Progestogen
Norethynodrel	5(10)-Norethisterone	0.5 (0.3–0.7)	<0.1–0.22	14	53	Progestogen
Tibolone	7α-Methylnorethynodrel	0.5 (0.45–2.0)	0.2–0.076	?	?	Progestogen
Δ⁴-Tibolone	7α-Methylnorethisterone	0.069–<0.1	0.027–<0.1	?	?	Progestogen
3α-Hydroxytibolone	–	2.5 (1.06–5.0)	0.6–0.8	?	?	Progestogen
3β-Hydroxytibolone	–	1.6 (0.75–1.9)	0.070–0.1	?	?	Progestogen
Footnotes:^a = (1)Binding affinity values are of the format "median (range)" (# (#–#)), "range" (#–#), or "value" (#) depending on the values available. The full sets of values within the ranges can be found in the Wiki code. (2) Binding affinities were determined via displacement studies in a variety ofin-vitro systems withlabeled estradiol and humanERα andERβ proteins (except the ERβ values from Kuiper et al. (1997), which are rat ERβ).Sources: See template page.

Analogues

[edit]

Analogues of 17α-ethynyl-3β-androstanediol include17α-ethynyl-3α-androstanediol,ethinylandrostenediol (17α-ethynyl-5-androstenediol),ethandrostate (17α-ethynyl-5-androstenediol 3β-cyclohexanepropionate),ethinylestradiol (17α-ethynylestradiol),ethisterone (17α-ethynyltestosterone), and5α-dihydroethisterone (17α-ethynyldihydrotestosterone).

References

[edit]

^^a ^bBeyler AL, Clinton RO (June 1956). "Uterine growth stimulating and testicular growth suppressing activities of 17alpha-ethinylandrostane-3beta, 17beta-diol, its delta 5-analog and derivatives".Proceedings of the Society for Experimental Biology and Medicine.92 (2):404–408.doi:10.3181/00379727-92-22493.PMID 13350363.S2CID 87469965.
^^a ^b ^c ^d ^e ^fAhlem C, Kennedy M, Page T, Bell D, Delorme E, Villegas S, et al. (February 2012). "17α-alkynyl 3α, 17β-androstanediol non-clinical and clinical pharmacology, pharmacokinetics and metabolism".Investigational New Drugs.30 (1):59–78.doi:10.1007/s10637-010-9517-0.PMID 20814732.S2CID 24785562.
^Clinton R, Neumann H, Laskowski S, Christiansen R (1957). "Notes - Esters of 17α-Ethinyl-androstane-3β,17β-diol and 17 α-Ethinylandrost-5-ene-3β, 17β-diol".The Journal of Organic Chemistry.22 (4):473–475.doi:10.1021/jo01355a627.ISSN 0022-3263.

Estrogen receptor modulators

ERTooltip Estrogen receptor

Agonists	Steroidal:2-Hydroxyestradiol 2-Hydroxyestrone 3-Methyl-19-methyleneandrosta-3,5-dien-17β-ol 3α-Androstanediol 3α,5α-Dihydrolevonorgestrel 3β,5α-Dihydrolevonorgestrel 3α-Hydroxytibolone 3β-Hydroxytibolone 3β-Androstanediol 4-Androstenediol 4-Androstenedione 4-Fluoroestradiol 4-Hydroxyestradiol 4-Hydroxyestrone 4-Methoxyestradiol 4-Methoxyestrone 5-Androstenediol 7-Oxo-DHEA 7α-Hydroxy-DHEA 7α-Methylestradiol 7β-Hydroxyepiandrosterone 8,9-Dehydroestradiol 8,9-Dehydroestrone 8β-VE2 10β,17β-Dihydroxyestra-1,4-dien-3-one (DHED) 11β-Chloromethylestradiol 11β-Methoxyestradiol 15α-Hydroxyestradiol 16-Ketoestradiol 16-Ketoestrone 16α-Fluoroestradiol 16α-Hydroxy-DHEA 16α-Hydroxyestrone 16α-Iodoestradiol 16α-LE2 16β-Hydroxyestrone 16β,17α-Epiestriol (16β-hydroxy-17α-estradiol) 17α-Estradiol (alfatradiol) 17α-Dihydroequilenin 17α-Dihydroequilin 17α-Epiestriol (16α-hydroxy-17α-estradiol) 17α-Ethynyl-3α-androstanediol 17α-Ethynyl-3β-androstanediol 17β-Dihydroequilenin 17β-Dihydroequilin 17β-Methyl-17α-dihydroequilenin Abiraterone Abiraterone acetate Alestramustine Almestrone Anabolic steroids (e.g.,testosterone andesters,methyltestosterone,metandienone (methandrostenolone),nandrolone andesters, many others; via estrogenic metabolites) Atrimustine Bolandiol Bolandiol dipropionate Butolame Clomestrone Cloxestradiol Cloxestradiol acetate Conjugated estriol Conjugated estrogens Cyclodiol Cyclotriol DHEA DHEA-S ent-Estradiol Epiestriol (16β-epiestriol, 16β-hydroxy-17β-estradiol) Epimestrol Equilenin Equilin ERA-63 (ORG-37663) Esterified estrogens Estetrol Estradiol Estradiol esters Lipoidal estradiol Polyestradiol phosphate Estramustine Estramustine phosphate Estrapronicate Estrazinol Estriol Estriol esters Polyestriol phosphate Estrofurate Estrogenic substances Estromustine Estrone Estrone esters Estrone methyl ether Estropipate Etamestrol (eptamestrol) Ethinylandrostenediol Ethandrostate Ethinylestradiol Ethinylestradiol 3-benzoate Ethinylestradiol sulfonate Ethinylestriol Ethylestradiol Etynodiol Etynodiol diacetate Hexolame Hippulin Hydroxyestrone diacetate Lynestrenol Lynestrenol phenylpropionate Mestranol Methylestradiol Moxestrol Mytatrienediol Nilestriol Norethisterone Noretynodrel Orestrate Pentolame Prodiame Prolame Promestriene RU-16117 Quinestradol Quinestrol Tibolone Nonsteroidal:(R,R)-THC (S,S)-THC 2,8-DHHHC β-LGND1 β-LGND2 (GTx-878) AC-186 Allenestrol Allenolic acid Benzestrol Bifluranol Bisdehydrodoisynolic acid Butestrol Carbestrol D-15414 DCW234 Diarylpropionitrile Dienestrol Dienestrol diacetate Diethylstilbestrol Diethylstilbestrol esters Dimestrol (dianisylhexene) Dimethylstilbestrol Doisynoestrol (fenocycline) Doisynolic acid Efavirenz Elacestrant ERB-196 (WAY-202196) Erteberel (SERBA-1, LY-500307) Estrobin (DBE) Fenestrel FERb 033 Fosfestrol (diethylstilbestrol diphosphate) Furostilbestrol (diethylstilbestrol difuroate) GTx-758 Hexestrol Hexestrol esters ICI-85966 (Stilbostat) M2613 meso-Butestrol meso-Hexestrol Mestilbol Methallenestril Methestrol Methestrol dipropionate Paroxypropione Pentafluranol Phenestrol Prinaberel (ERB-041, WAY-202041) Propylpyrazoletriol Quadrosilan SC-3296 SC-4289 SERBA-2 SKF-82,958 Terfluranol Triphenylbromoethylene Triphenylchloroethylene Triphenyliodoethylene Triphenylmethylethylene (triphenylpropene) WAY-166818 WAY-169916 WAY-200070 WAY-204688 (SIM-688) WAY-214156 Unknown/unsorted:ERB-26 ERA-45 ERB-79 ZK-283197 Xenoestrogens:Anise-related (e.g.,anethole,anol,dianethole,dianol,photoanethole) Chalconoids (e.g.,isoliquiritigenin,phloretin,phlorizin (phloridzin),wedelolactone) Coumestans (e.g.,coumestrol,psoralidin) Flavonoids (incl.7,8-DHF,8-prenylnaringenin,apigenin,baicalein,baicalin,biochanin A,calycosin,catechin,daidzein,daidzin,ECG,EGCG,epicatechin,equol,formononetin,glabrene,glabridin,genistein,genistin,glycitein,kaempferol,liquiritigenin,mirificin,myricetin,naringenin,penduletin,pinocembrin,prunetin,puerarin,quercetin,tectoridin,tectorigenin) Lavender oil Lignans (e.g.,enterodiol,enterolactone,nyasol (cis-hinokiresinol)) Metalloestrogens (e.g.,cadmium) Pesticides (e.g.,alternariol,dieldrin,endosulfan,fenarimol,HPTE,methiocarb,methoxychlor,triclocarban,triclosan) Phytosteroids (e.g.,digitoxin (digitalis),diosgenin,guggulsterone) Phytosterols (e.g.,β-sitosterol,campesterol,stigmasterol) Resorcylic acid lactones (e.g.,zearalanone,α-zearalenol,β-zearalenol,zearalenone,zeranol (α-zearalanol),taleranol (teranol, β-zearalanol)) Steroid-like (e.g.,deoxymiroestrol,miroestrol) Stilbenoids (e.g.,resveratrol,rhaponticin) Synthetic xenoestrogens (e.g.,alkylphenols,bisphenols (e.g.,BPA,BPF,BPS),DDT,parabens,PBBs,PHBA,phthalates,PCBs) Others (e.g.,agnuside,rotundifuran)
Mixed (SERMsTooltip Selective estrogen receptor modulators)	2-Phenylbenzofuran 2-Phenyl-1-benzothiophene 4'-Hydroxynorendoxifen 27-Hydroxycholesterol Acefluranol Acolbifene Afimoxifene Anordiol Anordrin Arzoxifene Bazedoxifene Brilanestrant Broparestrol Camizestrant Chlorotrianisene Clomifene Clomifenoxide CN-55945-27 Cyclofenil D-15413 Desmethylchlorotrianisene Droloxifene Enclomifene Endoxifen Etacstil (GW-5638, DPC-974) Ethamoxytriphetol (MER-25) Femarelle Fispemifene GW-7604 ICI-55548 Idoxifene Lasofoxifene Levormeloxifene LN-1643 LN-2299 LY-117018 Menerba Miproxifene Miproxifene phosphate MRL-37 Nafoxidine Nitromifene NNC 45-0095 NNC 45-0320 NNC 45-0781 NNC 45-1506 Ormeloxifene Ospemifene Panomifene Pipendoxifene Promensil Raloxifene Rimostil (P-081) Spironolactone SS1010 Tamoxifen TAS-108 (SR-16234) Toremifene Trioxifene TZE-5323 U-11555A U-11634 Y-134 Zindoxifene Zuclomifene
Antagonists	(R,R)-THC 7β-Hydroxy-DHEA Chloroindazole Cytestrol acetate EM-800 (SCH-57050) Epitiostanol ERA-90 ERB-88 Fulvestrant (ICI-182780) Glyceollins (I,II,III,IV) ICI-164384 MDL-101906 Mepitiostane Methylepitiostanol Methylpiperidinopyrazole MIBE Oxabicycloheptene sulfonate Phenytoin PHTPP Prochloraz RU-39411 RU-58668 SS1020 TAS-108 (SR-16234) ZB716 ZK-164015 ZK-191703 Coregulator-binding modulators:ERX-11 Noncompetitive inhibitors:Trilostane

GPERTooltip G protein-coupled estrogen receptor

Agonists	2-Methoxyestradiol 7β-Hydroxyepiandrosterone Afimoxifene (4-hydroxytamoxifen) Aldosterone Atrazine Bisphenol A Daidzein DDT (p,p'-DDT,o',p'-DDE) Diarylpropionitrile Equol Estradiol Ethinylestradiol Fulvestrant (ICI-182780) G-1 Genistein GPER-L1 GPER-L2 Hydroxytyrosol Kepone Nicotinic acid Nicotinamide Nonylphenol Oleuropein PCBs (2,2',5'-PCB-4-OH) Propylpyrazoletriol Quercetin Raloxifene Resveratrol STX Tamoxifen Tectoridin
Antagonists	CCL18 Estriol G-15 G-36 MIBE
Unknown	Diethylstilbestrol Zearalenone

See also: Receptor/signaling modulators; Estrogens and antiestrogens; Androgen receptor modulators; Progesterone receptor modulators; List of estrogens

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