1,4,6-Androstatriene-3,17-dione

1,4,6-Androstatriene-3,17-dione
Systematic (IUPAC) name

(8R,9S,10R,13S,14S)-10,13-dimethyl-9,11,12,14,15,16-hexahydro-8H-cyclopenta[a]phenanthrene-3,17-dione
Clinical data
Pregnancy category	US: X (Contraindicated)
Legal status	US: Supplement
Routes of administration	Oral
Pharmacokinetic data
Metabolism	Hepatic
Biological half-life	48 hours
Identifiers
CAS Number	633-35-2
PubChem	CID 104880
ChemSpider	94659^Y
Chemical data
Formula	C₁₉H₂₂O₂
Molar mass	282
SMILES O=C\4\C=C/[C@]3(C(/C=C\[C@H]2[C@H]1[C@@](C(=O)CC1)(CC[C@@H]23)C)=C/4)C
InChI InChI=1S/C19H22O2/c1-18-9-7-13(20)11-12(18)3-4-14-15-5-6-17(21)19(15,2)10-8-16(14)18/h3-4,7,9,11,14-16H,5-6,8,10H2,1-2H3/t14-,15-,16-,18-,19-/m0/s1^Y Key:DKVSUQWCZQBWCP-QAGGRKNESA-N^Y
(verify)

1,4,6-Androstatriene-3,17-dione (ATD) is a potent irreversible aromatase inhibitor that inhibits estrogen biosynthesis by permanently binding and inactivating aromatase in adipose and peripheral tissue.^[1] It is used to control estrogen synthesis.^[2]

ATD is present in some over-the-counter bodybuilding supplements as well as Topical ATD solutions that work transdermally. While not banned, ATD may cause positive urinalysis results leading to disqualification from competitive sports. ATD has many names in sports supplements including: 1,4,6 etiollochan-dione, 3, 17-keto-etiochol-triene, androst-1,4,6-triene-3,17-dione and many others. These all refer to CAS# 633-35-2.

ATD may cause a positive test for the anabolic steroid boldenone, of which it is a metabolite and is also prohibited in amateur and professional sports which forbids aromatase inhibitors.^[3]

A related agent is exemestane (Aromasin).

References

↑ Covey, DF; Hood, WF (1981). "Enzyme-generated intermediates derived from 4-androstene-3,6,17-trione and 1,4,6-androstatriene-3,17-dione cause a time-dependent decrease in human placental aromatase activity". Endocrinology 108 (4): 1597–9. doi:10.1210/endo-108-4-1597. PMID 7472286.
↑ Adkins-Regan, Elizabeth; Cary H Leung (2006-07-06). "Sex steroids modulate changes in social and sexual preference during juvenile development in zebra finches". Hormones and Behaviour (Elsevier Inc) 50 (5): 772–778. doi:10.1016/j.yhbeh.2006.07.003. PMID 16919276. Retrieved 2007-10-07.
↑ Parr MK, Fusshöller G, Schlörer N, Opfermann G, Piper T, Rodchenkov G, Schänzer W (2009). "Metabolism of androsta-1,4,6-triene-3,17-dione and detection by gas chromatography/mass spectrometry in doping control". Rapid Commun Mass Spectrom 23 (2): 207–18. doi:10.1002/rcm.3861. PMID 19089863.

Agonists	4-Chlordehydromethyltestosterone 4-Hydroxytestosterone 5α-Androst-1-ene-3,17-dione 7β-Hydroxyepiandrosterone 11-Ketotestosterone 17-((1-Oxoheptyl)oxy)androstan-3-one 17-((1-Oxopentyl)oxy)androstan-3-one 17-(1-Oxopropoxy)androstan-3-one 17β-Hydroxyandrost-2-ene-2-carbonitrile 19-Norandrostenediol 19-Norandrostenedione 19-Norandrosterone 19-Nordehydrotestosterone Δ¹-Androstenediol Δ¹-Testosterone Δ^1,4-Androstenedione Δ⁴-Androstenediol Δ⁴-Androstenedione Δ^4-Tibolone Δ⁴-Androstenediol Δ⁴-Androstenedione Adrenosterone Androisoxazole Androstanolone Bolandiol Bolasterone Bolazine Boldenone Boldione Bolenol Bolmantalate Calusterone Cl-4AS-1 Clostebol Cloxotestosterone Cortexolone 17α-propionate Danazol Desogestrel Desoxymethyltestosterone DHEA DHEA sulfate Dihydrotestosterone Drostanolone Enestebol Epitiostanol Ethisterone Ethyldienolone Ethylestrenol Fluoxymesterone Formebolone Furazabol Hexabolan Hydroxystenozole Levonorgestrel Mebolazine Medroxyprogesterone acetate Mepitiostane Mesabolone Mestanolone Mesterolone Metandienone/Methandrostenolone Metenolone Metenolone acetate Metenolone enanthate Methandriol Methandriol propionate Methasterone Methylestrenolone Methyltestosterone Metribolone Mibolerone Nandrolone Nandrolone caproate Nandrolone cypionate Nandrolone cyclohexane carboxylate Nandrolone cyclohexylpropionate Nandrolone cyclotate Nandrolone decanoate Nandrolone furylpropionate Nandrolone hexyloxyphenylpropionate Nandrolone hydrogen succinate Nandrolone laurate Nandrolone phenylpropionate Nandrolone propionate Nandrolone undecyclate Norboletone Norclostebol Norethandrolone Norethisterone Norgestrel Oxabolone Oxabolone cypionate Oxandrolone Oxendolone Oxymesterone Oxymetholone Penmesterol Propetandrol Quinbolone Quingestanol acetate Roxibolone Silandrone Stanozolol Stenbolone Stenbolone acetate Testolactone Testosterone Testosterone acetate Testosterone capropate Testosterone cypionate Testosterone decanoate Testosterone enanthate Testosterone isocaproate Testosterone ketolaurate Testosterone nicotinate Testosterone phenylpropionate Testosterone propionate Testosterone undecanoate Tetrahydrogestrinone Thiomesterone Tibolone Tiomesterone Trenboloneca Trenbolone acetate Trestolone

Mixed (SARMs)	AC-262,356 Andarine BMS-564,929 Enobosarm (ostarine) LGD-2226 LGD-3303 LGD-4033 RAD140 S-23 S-40503 TFM-4AS-1

Antagonists	3α-Hydroxytibolone 3β-Hydroxytibolone Abiraterone Abiraterone acetate Apalutamide AZD-3514 Bisphenols (e.g., BADGE, BFDGE, bisphenol A, bisphenol F, bisphenol S) Benorterone Bicalutamide BMS-641,988 BOMT Canrenoic acid Canrenone Chlormadinone acetate Cimetidine Cioteronel Clometerone Cyproterone Cyproterone acetate Delanterone DDT (via metabolite p,p’-DDE) Dieldrin Dienogest Drospirenone Endosulfan Enzalutamide EPI-001 Epitestosterone Fenarimol Flutamide Galeterone Guggulsterone Hydroxyflutamide Inocoterone Ketoconazole Lavender oil Linuron Megestrol acetate Mespirenone Methiocarb Metogest Mifepristone Nilutamide Nomegestrol Nordinone Norgestimate ODM-201 ONC1-13B ORM-15341 Osaterone Oxendolone PF-998425 Potassium canrenoate Prochloraz Procymidone R-2956 Rosterolone RU-58642 RU-58841 Spironolactone Topilutamide (fluridil) Topterone Valproic acid Vinclozolin VT-464 Zanoterone

Enzyme

Modulators	See here instead (modulators of 20,22-desmolase, 17α-hydroxylase/17,20-lyase, 3β-HSD, 17β-HSD, 5α-reductase, and aromatase).

Others

Precursors/prohormones	Cholesterol 22R-Hydroxycholesterol 20α,22R-Dihydroxycholesterol Pregnenolone Pregnenolone sulfate 17-Hydroxypregnenolone Progesterone 17-Hydroxyprogesterone 11-Deoxycortisol (cortodoxone) DHEA DHEA sulfate Δ⁵-Androstenediol Δ⁴-Androstenedione

Indirect	Antigonadotropins (e.g., estrogens, progestogens, prolactin) GnRH agonists (e,g, GnRH, leuprorelin) GnRH antagonists (e.g., cetrorelix) Gonadotropins (e.g., FSH, hCG, LH) Kisspeptin Plasma proteins (ABP, albumin, SHBG)

See also: Estrogenics • Glucocorticoids • Mineralocorticoids • Progestogenics

Estrogenics

Receptor
(ligands)

ER (α, β)

Agonists	(R)-DPN (S)-DPN (R,R)-THC (S,S)-THC 2,8-DHHHC 3α-Androstanediol 3β-Androstanediol 3α-Hydroxytibolone 3β-Hydroxytibolone 7-Oxo-DHEA 7α-Hydroxy-DHEA 7β-Hydroxyepiandrosterone 8β-VE₂ 16α-Hydroxy-DHEA 16α-Hydroxyestrone 16α-IE₂ 16α-LE₂ (Cpd1471) Δ⁴-Androstenedione Δ⁵-Androstenediol 17α-Estradiol (alfatradiol) 17β-Estradiol (estradiol) Alestramustine Almestrone Anabolic steroids (prodrugs; e.g., testosterone, metandienone (methandrostenolone), others) Anethole Anol Atrimustine Benzestrol Bifluranol Bisdehydrodoisynolic acid Carbestrol Chalconoids (e.g., isoliquiritigenin, phloretin, phlorizin (phloridzin), wedelolactone) Cloxestradiol Conjugated equine estrogens (e.g., sodium equilin sulfate, sodium equilenin sulfate) Coumestans (e.g., coumestrol, psoralidin) DHEA DHEA-S Deoxymiroestrol Dianethole Dianol Diarylpropionitrile Dieldrin Dienestrol Dienestrol acetate Diethylstilbestrol Diethylstilbestrol dipropionate Diosgenin Doisynoestrol (fenocycline) Doisynolic acid DY-131 (GSK-9089) Endosulfan Epiestriol Epimestrol ERB-196 (WAY-202196) Esterified estrogens (e.g., estrone sulfate, equilin sulfate, equilenin sulfate) Estetrol Estradiol benzoate Estradiol butyrylacetate Estradiol cypionate Estradiol dienanthate Estradiol dipropionate Estradiol diundecylate Estradiol diundecylenate Estradiol enanthate Estradiol furoate Estradiol hemihydrate Estradiol hemisuccinate Estradiol hexahydrobenzoate Estradiol monopropionate Estradiol palmitate Estradiol pivalate Estradiol propoxyphenylpropionate Estradiol stearate Estradiol succinate Estradiol undecylate Estradiol valerate Estramustine Estramustine phosphate Estrapronicate Estrazinol Estriol Estriol succinate Estriol tripropionate Estrobin (DBE) Estrofurate Estromustine Estrone Estrone acetate Estrone cyanate Estrone sulfate Estrone tetraacetylglucoside Estropipate Estropronicate Etamestrol (eptamestrol) Ethinyl estradiol Ethinyl estradiol 3-isopropylsulfonate Etynodiol diacetate Fenarimol Fenestrel FERb 033 Flavonoids (incl. 7,8-DHF, 8-prenylnaringenin, apigenin, baicalein, baicalin, calycosin, catechin, daidzein, daidzin, ECG, EGCG, epicatechin, equol, formononetin, glabrene, glabridin, genistein, genistin, glycitein, kaempferol, liquiritigenin, mirificin, myricetin, naringenin, pinocembrin, prunetin, puerarin, quercetin, tectoridin, tectorigenin) Fosfestrol Furostilbestrol GSK-4716 Hexestrol Hexestrol diacetate Hexestrol dicaprylate Hexestrol diphosphate Hexestrol dipropionate Hydroxyestrone diacetate Lavender oil Lignans (e.g., enterodiol, enterolactone) Mestranol Metalloestrogens (e.g., cadmium) Methallenestril Methestrol Methestrol dipropionate Methiocarb Methylestradiol Miroestrol Moxestrol Nilestriol Noretynodrel Orestrate Paroxypropione Phytosterols (e.g., β-sitosterol, campesterol, stigmasterol) Polyestradiol phosphate Prinaberel (ERB-041, WAY-202041) Propylpyrazoletriol Promestriene Resorcylic acid lactones (e.g., zearalanone, zearalenol, zearalenone, zeranal (zearalanol)) Quadrosilan Quinestradol Quinestrol SKF-82,958 Stilbenoids (e.g., resveratrol) Synthetic xenoestrogens (e.g., alkylphenols, bisphenols (e.g., BPA, BPF, BPS), DDT, parabens, PBBs, PHBA, phthalates, PCBs) WAY-166818 WAY-200070

Mixed (SERMs)	2-Hydroxyestrone 27-Hydroxycholesterol Acolbifene Afimoxifene Anordrin Anordriol Arzoxifene Bazedoxifene Broparestrol Chlorotrianisene Clomifene Clomifenoxide Cyclofenil Droloxifene Enclomifene Endoxifen Ethamoxytriphetol (MER-25) Femarelle Fispemifene GW5638 Idoxifene Lasofoxifene Levormeloxifene Menerba Mepitiostane Miproxifene Nafoxidine Nitromifene Ormeloxifene Ospemifene Panomifene Phenytoin Pipendoxifene Raloxifene SS1010 Sivifene Tamoxifen TAS-108 Tesmilifene Tibolone Toremifene Trioxifene Y-134 Zindoxifene Zuclomifene

Antagonists	(R,R)-THC Fulvestrant ICI-164384 Methylpiperidinopyrazole MIBE PHTPP Prochloraz RU-58668 SS1020 XCT-790 ZK-164015 ZK-191703

GPER

Agonists	7β-Hydroxyepiandrosterone Afimoxifene (4-hydroxytamoxifen) Atrazine Bisphenol A Daidzein DDT (p,p'-DDT, o',p'-DDE) Equol Estradiol Fulvestrant (ICI-182,780) G-1 Genistein GPER-L1 GPER-L2 Hydroxytyrosol Kepone Niacin Nicotinamide Nonylphenol Oleuropein PCB (2,2',5'-PCB-4-OH) Propylpyrazoletriol Quercetin Raloxifene Resveratrol Tamoxifen Tectoridin Zearalenone

Antagonists	Estriol G-15 G-36 MIBE

Enzyme

Modulators	See here instead (modulators of 20,22-desmolase, 17α-hydroxylase/17,20-lyase, 3β-HSD, 17β-HSD, 5α-reductase, aromatase, and 27-hydroxylase).

Others

Precursors	Cholesterol 22R-Hydroxycholesterol 20α,22R-Dihydroxycholesterol Pregnenolone Pregnenolone sulfate 17-Hydroxypregnenolone Progesterone 17-Hydroxyprogesterone 11-Deoxycortisol (cortodoxone) DHEA DHEA sulfate 16-Hydroxy-DHEA sulfate Δ⁵-Androstenediol Δ⁴-Androstenedione 16-Hydroxyandrostenedione Testosterone

Indirect	Antigonadotropins (e.g., androgens, estrogens, progestogens, prolactin) Calcitriol (vitamin D) GnRH agonists (e,g, GnRH, leuprorelin) GnRH antagonists (e.g., cetrorelix) Gonadotropins (e.g., FSH, hCG, LH) Kisspeptin Plasma proteins (ABP, albumin, SHBG)

See also: Androgenics • Glucocorticoids • Mineralocorticoids • Progestogenics

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1,4,6-Androstatriene-3,17-dione

References

Further reading