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Estradiol 17β-acetate

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Chemical compound

Not to be confused withEstradiol acetate.

Pharmaceutical compound

Estradiol 17β-acetate
Clinical data

Drug class	Estrogen;Estrogen ester
Identifiers
IUPAC name [(8R,9S,13S,14S,17S)-3-hydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl] acetate
CAS Number	1743-60-8
PubChemCID	6852404
ChemSpider	5254726
UNII	2VM9HO33RU
KEGG	C15228
ChEBI	CHEBI:79735
ChEMBL	ChEMBL1611800
CompTox Dashboard(EPA)	DTXSID20938492
ECHA InfoCard	100.110.039
Chemical and physical data
Formula	C₂₀H₂₆O₃
Molar mass	314.425 g·mol⁻¹
3D model (JSmol)	Interactive image
SMILES CC(=O)O[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=C3C=CC(=C4)O)C
InChI InChI=1S/C20H26O3/c1-12(21)23-19-8-7-18-17-5-3-13-11-14(22)4-6-15(13)16(17)9-10-20(18,19)2/h4,6,11,16-19,22H,3,5,7-10H2,1-2H3/t16-,17-,18+,19+,20+/m1/s1 Key:QAHOQNJVHDHYRN-SLHNCBLASA-N

Estradiol 17β-acetate is anestrogen and anestrogen ester—specifically, the C17βacetate ester ofestradiol—which was never marketed.^[1]^[2]^[3] It is the C17βpositional isomer of the better-known and clinically usedestradiol ester estradiol acetate (estradiol 3-acetate; Femtrace).^[1]

v
t
e
Affinities and estrogenic potencies of estrogen esters and ethers at the estrogen receptors
Estrogen	Other names	RBATooltip Relative binding affinity (%)^a	REP (%)^b
Estrogen	Other names	ER	ERα	ERβ
Estradiol	E2	100	100	100
Estradiol 3-sulfate	E2S; E2-3S	?	0.02	0.04
Estradiol 3-glucuronide	E2-3G	?	0.02	0.09
Estradiol 17β-glucuronide	E2-17G	?	0.002	0.0002
Estradiol benzoate	EB; Estradiol 3-benzoate	10	1.1	0.52
Estradiol 17β-acetate	E2-17A	31–45	24	?
Estradiol diacetate	EDA; Estradiol 3,17β-diacetate	?	0.79	?
Estradiol propionate	EP; Estradiol 17β-propionate	19–26	2.6	?
Estradiol valerate	EV; Estradiol 17β-valerate	2–11	0.04–21	?
Estradiol cypionate	EC; Estradiol 17β-cypionate	?^c	4.0	?
Estradiol palmitate	Estradiol 17β-palmitate	0	?	?
Estradiol stearate	Estradiol 17β-stearate	0	?	?
Estrone	E1; 17-Ketoestradiol	11	5.3–38	14
Estrone sulfate	E1S; Estrone 3-sulfate	2	0.004	0.002
Estrone glucuronide	E1G; Estrone 3-glucuronide	?	<0.001	0.0006
Ethinylestradiol	EE; 17α-Ethynylestradiol	100	17–150	129
Mestranol	EE 3-methyl ether	1	1.3–8.2	0.16
Quinestrol	EE 3-cyclopentyl ether	?	0.37	?
Footnotes:^a =Relative binding affinities (RBAs) were determined viain-vitro displacement oflabeled estradiol fromestrogen receptors (ERs) generally ofrodent uterine cytosol.Estrogen esters are variablyhydrolyzed into estrogens in these systems (shorter ester chain length -> greater rate of hydrolysis) and the ER RBAs of the esters decrease strongly when hydrolysis is prevented.^b = Relative estrogenic potencies (REPs) were calculated fromhalf-maximal effective concentrations (EC₅₀) that were determined viain-vitroβ‐galactosidase (β-gal) andgreen fluorescent protein (GFP)production assays inyeast expressing humanERα and humanERβ. Bothmammalian cells and yeast have the capacity to hydrolyze estrogen esters.^c = The affinities ofestradiol cypionate for the ERs are similar to those ofestradiol valerate andestradiol benzoate (figure).Sources: See template page.

References

[edit]

^^a ^bJunkmann K, Witzel H (1957). "Chemie und Pharmakologie von Steroidhormon-Estern" [Chemistry and pharmacology of steroid hormone esters].Z Vitam Horm Fermentforsch (in German).9 (1–2): 97–143 contd.PMID 13531579.
^Janocko L, Larner JM, Hochberg RB (April 1984). "The interaction of C-17 esters of estradiol with the estrogen receptor".Endocrinology.114 (4):1180–6.doi:10.1210/endo-114-4-1180.PMID 6705734.
^Mu Y, Peng S, Zhang A, Wang L (February 2011). "Role of pocket flexibility in the modulation of estrogen receptor alpha by key residue arginine 394".Environ. Toxicol. Chem.30 (2):330–6.Bibcode:2011EnvTC..30..330M.doi:10.1002/etc.389.PMID 21038436.S2CID 22116062.

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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