Ethinylandrostenediol

Last updated • 1 min readFrom Wikipedia, The Free Encyclopedia
Ethinylandrostenediol
Ethinylandrostenediol.svg
Clinical data
Other namesSKF-2856; 17α-Ethynyl-5-androstenediol; 17α-Ethynylandrost-5-ene-3β,17-diol; 17α-Pregn-5-en-20-yne-3β,17-diol; NSC-17098
Drug class Estrogen; Progestogen; Progestin
Identifiers
  • (3S,8R,9S,10R,13S,14S,17R)-17-ethynyl-10,13-dimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-diol
CAS Number
ChemSpider
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
Formula C21H30O2
Molar mass 314.469 g·mol−1
3D model (JSmol)
  • C[C@]12CC[C@@H](CC1=CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@]4(C#C)O)C)O
  • InChI=1S/C21H30O2/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/h1,5,15-18,22-23H,6-13H2,2-3H3/t15-,16+,17-,18-,19-,20-,21-/m0/s1
  • Key:VGJUOWGYQZYCII-TVWVXWENSA-N

Ethinylandrostenediol (developmental code name SKF-2856), also known as 17α-ethynyl-5-androstenediol, is a synthetic estrogen, progestogen, and androgen which was never marketed. [1] [2] [3] [4] [5] [6] It is the C17α ethynyl derivative of the androgen precursor and prohormone 5-androstenediol. [1]

Ethinylandrostenediol was first synthesized in the late 1930s and along with its close analogue ethisterone (17α-ethynyltestosterone) was one of the first progestins (synthetic progestogens) to be developed. [7] [8] [9] Ethinylandrostenediol is orally active similarly to ethisterone and shows about half its progestogenic potency. [9] Ethinylandrostenediol was an intermediate in the initial synthesis of ethisterone. [10]

Ethinylandrostenediol shows tissue selectivity in its estrogenic effects in animals and doesn't seem to have estrogenic effects in the uterus. [1] The androgenic activity of ethinylandrostenediol is weak. [9]

An ester of ethinylandrostenediol, ethandrostate (17α-ethynyl-5-androstenediol 3β-cyclohexylpropionate), has been studied clinically in men and women with prostate cancer and breast cancer, respectively. [11] [12] [13] [14] [15]

Notable structural analogues of ethinylandrostenediol include 5-androstenediol, 17α-ethynyl-3β-androstanediol, 17α-ethynyl-3α-androstanediol, ethisterone (17α-ethynyltestosterone), and methandriol (17α-methyl-5-androstenediol), as well as ethinylestradiol (17α-ethynylestradiol or 17α-ethynylestra-1,3,5(10)-triene-3,17β-diol).

Affinities of estrogen receptor ligands for the ERα and ERβ
Ligand Other names Relative binding affinities (RBA, %)a Absolute binding affinities (Ki, nM)aAction
ERα ERβ ERα ERβ
Estradiol E2; 17β-Estradiol1001000.115 (0.04–0.24)0.15 (0.10–2.08)Estrogen
Estrone E1; 17-Ketoestradiol16.39 (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-E212.65 (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-E24.03.04.919Estrogen
Alfatradiol 17α-Estradiol20.5 (7–80.1)8.195 (2–42)0.2–0.520.43–1.2Metabolite
16-Epiestriol 16β-Hydroxy-17β-estradiol7.795 (4.94–63)50 ? ?Metabolite
17-Epiestriol 16α-Hydroxy-17α-estradiol55.45 (29–103)79–80 ? ?Metabolite
16,17-Epiestriol 16β-Hydroxy-17α-estradiol1.013 ? ?Metabolite
2-Hydroxyestradiol 2-OH-E222 (7–81)11–352.51.3Metabolite
2-Methoxyestradiol 2-MeO-E20.0027–2.01.0 ? ?Metabolite
4-Hydroxyestradiol 4-OH-E213 (8–70)7–561.01.9Metabolite
4-Methoxyestradiol 4-MeO-E22.01.0 ? ?Metabolite
2-Hydroxyestrone 2-OH-E12.0–4.00.2–0.4 ? ?Metabolite
2-Methoxyestrone 2-MeO-E1<0.001–<1<1 ? ?Metabolite
4-Hydroxyestrone 4-OH-E11.0–2.01.0 ? ?Metabolite
4-Methoxyestrone 4-MeO-E1<1<1 ? ?Metabolite
16α-Hydroxyestrone 16α-OH-E1; 17-Ketoestriol2.0–6.535 ? ?Metabolite
2-Hydroxyestriol 2-OH-E32.01.0 ? ?Metabolite
4-Methoxyestriol 4-MeO-E31.01.0 ? ?Metabolite
Estradiol sulfate E2S; Estradiol 3-sulfate<1<1 ? ?Metabolite
Estradiol disulfate Estradiol 3,17β-disulfate0.0004 ? ? ?Metabolite
Estradiol 3-glucuronide E2-3G0.0079 ? ? ?Metabolite
Estradiol 17β-glucuronide E2-17G0.0015 ? ? ?Metabolite
Estradiol 3-gluc. 17β-sulfate E2-3G-17S0.0001 ? ? ?Metabolite
Estrone sulfate E1S; Estrone 3-sulfate<1<1>10>10Metabolite
Estradiol benzoate EB; Estradiol 3-benzoate10 ? ? ?Estrogen
Estradiol 17β-benzoate E2-17B11.332.6 ? ?Estrogen
Estrone methyl ether Estrone 3-methyl ether0.145 ? ? ?Estrogen
ent-Estradiol 1-Estradiol1.31–12.349.44–80.07 ? ?Estrogen
Equilin 7-Dehydroestrone13 (4.0–28.9)13.0–490.790.36Estrogen
Equilenin 6,8-Didehydroestrone2.0–157.0–200.640.62Estrogen
17β-Dihydroequilin 7-Dehydro-17β-estradiol7.9–1137.9–1080.090.17Estrogen
17α-Dihydroequilin 7-Dehydro-17α-estradiol18.6 (18–41)14–320.240.57Estrogen
17β-Dihydroequilenin 6,8-Didehydro-17β-estradiol35–6890–1000.150.20Estrogen
17α-Dihydroequilenin 6,8-Didehydro-17α-estradiol20490.500.37Estrogen
Δ8-Estradiol 8,9-Dehydro-17β-estradiol68720.150.25Estrogen
Δ8-Estrone 8,9-Dehydroestrone19320.520.57Estrogen
Ethinylestradiol EE; 17α-Ethynyl-17β-E2120.9 (68.8–480)44.4 (2.0–144)0.02–0.050.29–0.81Estrogen
Mestranol EE 3-methyl ether ?2.5 ? ?Estrogen
Moxestrol RU-2858; 11β-Methoxy-EE35–435–200.52.6Estrogen
Methylestradiol 17α-Methyl-17β-estradiol7044 ? ?Estrogen
Diethylstilbestrol DES; Stilbestrol129.5 (89.1–468)219.63 (61.2–295)0.040.05Estrogen
Hexestrol Dihydrodiethylstilbestrol153.6 (31–302)60–2340.060.06Estrogen
Dienestrol Dehydrostilbestrol37 (20.4–223)56–4040.050.03Estrogen
Benzestrol (B2) –114 ? ? ?Estrogen
Chlorotrianisene TACE1.74 ?15.30 ?Estrogen
Triphenylethylene TPE0.074 ? ? ?Estrogen
Triphenylbromoethylene TPBE2.69 ? ? ?Estrogen
Tamoxifen ICI-46,4743 (0.1–47)3.33 (0.28–6)3.4–9.692.5SERM
Afimoxifene 4-Hydroxytamoxifen; 4-OHT100.1 (1.7–257)10 (0.98–339)2.3 (0.1–3.61)0.04–4.8SERM
Toremifene 4-Chlorotamoxifen; 4-CT ? ?7.14–20.315.4SERM
Clomifene MRL-4125 (19.2–37.2)120.91.2SERM
Cyclofenil F-6066; Sexovid151–152243 ? ?SERM
Nafoxidine U-11,000A30.9–44160.30.8SERM
Raloxifene –41.2 (7.8–69)5.34 (0.54–16)0.188–0.5220.2SERM
Arzoxifene LY-353,381 ? ?0.179 ?SERM
Lasofoxifene CP-336,15610.2–16619.00.229 ?SERM
Ormeloxifene Centchroman ? ?0.313 ?SERM
Levormeloxifene 6720-CDRI; NNC-460,0201.551.88 ? ?SERM
Ospemifene Deaminohydroxytoremifene0.82–2.630.59–1.22 ? ?SERM
Bazedoxifene – ? ?0.053 ?SERM
Etacstil GW-56384.3011.5 ? ?SERM
ICI-164,384 –63.5 (3.70–97.7)1660.20.08Antiestrogen
Fulvestrant ICI-182,78043.5 (9.4–325)21.65 (2.05–40.5)0.421.3Antiestrogen
Propylpyrazoletriol PPT49 (10.0–89.1)0.120.4092.8ERα agonist
16α-LE2 16α-Lactone-17β-estradiol14.6–570.0890.27131ERα agonist
16α-Iodo-E2 16α-Iodo-17β-estradiol30.22.30 ? ?ERα agonist
Methylpiperidinopyrazole MPP110.05 ? ?ERα antagonist
Diarylpropionitrile DPN0.12–0.256.6–1832.41.7ERβ agonist
8β-VE2 8β-Vinyl-17β-estradiol0.3522.0–8312.90.50ERβ agonist
Prinaberel ERB-041; WAY-202,0410.2767–72 ? ?ERβ agonist
ERB-196 WAY-202,196 ?180 ? ?ERβ agonist
Erteberel SERBA-1; LY-500,307 ? ?2.680.19ERβ agonist
SERBA-2 – ? ?14.51.54ERβ agonist
Coumestrol –9.225 (0.0117–94)64.125 (0.41–185)0.14–80.00.07–27.0Xenoestrogen
Genistein –0.445 (0.0012–16)33.42 (0.86–87)2.6–1260.3–12.8Xenoestrogen
Equol –0.2–0.2870.85 (0.10–2.85) ? ?Xenoestrogen
Daidzein –0.07 (0.0018–9.3)0.7865 (0.04–17.1)2.085.3Xenoestrogen
Biochanin A –0.04 (0.022–0.15)0.6225 (0.010–1.2)1748.9Xenoestrogen
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-PN4.4 ? ? ?Xenoestrogen
Quercetin –<0.001–0.010.002–0.040 ? ?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-Zearalanol48–111 ? ? ?Xenoestrogen
Taleranol β-Zearalanol16 (13–17.8)140.80.9Xenoestrogen
Zearalenone ZEN7.68 (2.04–28)9.45 (2.43–31.5) ? ?Xenoestrogen
Zearalanone ZAN0.51 ? ? ?Xenoestrogen
Bisphenol A BPA0.0315 (0.008–1.0)0.135 (0.002–4.23)19535Xenoestrogen
Endosulfan EDS<0.001–<0.01<0.01 ? ?Xenoestrogen
Kepone Chlordecone0.0069–0.2 ? ? ?Xenoestrogen
o,p'-DDT –0.0073–0.4 ? ? ?Xenoestrogen
p,p'-DDT –0.03 ? ? ?Xenoestrogen
Methoxychlor p,p'-Dimethoxy-DDT0.01 (<0.001–0.02)0.01–0.13 ? ?Xenoestrogen
HPTE Hydroxychlor; p,p'-OH-DDT1.2–1.7 ? ? ?Xenoestrogen
Testosterone T; 4-Androstenolone<0.0001–<0.01<0.002–0.040>5000>5000Androgen
Dihydrotestosterone DHT; 5α-Androstanolone0.01 (<0.001–0.05)0.0059–0.17221–>500073–1688Androgen
Nandrolone 19-Nortestosterone; 19-NT0.010.2376553Androgen
Dehydroepiandrosterone DHEA; Prasterone0.038 (<0.001–0.04)0.019–0.07245–1053163–515Androgen
5-Androstenediol A5; Androstenediol6173.60.9Androgen
4-Androstenediol –0.50.62319Androgen
4-Androstenedione A4; Androstenedione<0.01<0.01>10000>10000Androgen
3α-Androstanediol 3α-Adiol0.070.326048Androgen
3β-Androstanediol 3β-Adiol3762Androgen
Androstanedione 5α-Androstanedione<0.01<0.01>10000>10000Androgen
Etiocholanedione 5β-Androstanedione<0.01<0.01>10000>10000Androgen
Methyltestosterone 17α-Methyltestosterone<0.0001 ? ? ?Androgen
Ethinyl-3α-androstanediol 17α-Ethynyl-3α-adiol4.0<0.07 ? ?Estrogen
Ethinyl-3β-androstanediol 17α-Ethynyl-3β-adiol505.6 ? ?Estrogen
Progesterone P4; 4-Pregnenedione<0.001–0.6<0.001–0.010 ? ?Progestogen
Norethisterone NET; 17α-Ethynyl-19-NT0.085 (0.0015–<0.1)0.1 (0.01–0.3)1521084Progestogen
Norethynodrel 5(10)-Norethisterone0.5 (0.3–0.7)<0.1–0.221453Progestogen
Tibolone 7α-Methylnorethynodrel0.5 (0.45–2.0)0.2–0.076 ? ?Progestogen
Δ4-Tibolone 7α-Methylnorethisterone0.069–<0.10.027–<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 of in-vitro systems with labeled estradiol and human ERα and ERβ proteins (except the ERβ values from Kuiper et al. (1997), which are rat ERβ). Sources: See template page.

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<span class="mw-page-title-main">17α-Ethynyl-3β-androstanediol</span> Chemical compound

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References

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  14. ↑ Clinton R, Neumann H, Laskowski S, Christiansen R (1957). "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.
  15. ↑ Olson KB, Frawley TF, Stein AA, Shields D (1958). "Ethandrostate: endocrine effects and studies in treatment of cancer". Cancer. 11 (3): 537–45. doi:10.1002/1097-0142(195805/06)11:3<537::aid-cncr2820110313>3.0.co;2-w. PMID   13523561. S2CID   738607.



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