Megestrol

This article is about a non-clinically used progestin compound. For the pharmaceutical drug, see megestrol acetate.

Megestrol
Systematic (IUPAC) name

17-hydroxy-6-methylpregna-4,6-diene-3,20-dione
Identifiers
CAS Number	3562-63-8^Y
ATC code	None
PubChem	CID 1909019090
ChemSpider	18023^Y
ChEBI	CHEBI:6722^N
Chemical data
Formula	C₂₂H₃₀O₃
Molar mass	342.472 g/mol
SMILES O=C4\C=C3\C(=C/[C@@H]1[C@H](CC[C@@]2([C@@](O)(C(=O)C)CC[C@@H]12)C)[C@@]3(C)CC4)C
InChI InChI=1S/C22H30O3/c1-13-11-16-17(20(3)8-5-15(24)12-19(13)20)6-9-21(4)18(16)7-10-22(21,25)14(2)23/h11-12,16-18,25H,5-10H2,1-4H3/t16-,17+,18+,20-,21+,22+/m1/s1^Y Key:VXIMPSPISRVBPZ-NWUMPJBXSA-N^Y
^NY (what is this?) (verify)

Megestrol (INN, BAN) is a steroidal progestin which was never marketed and is not currently used clinically.^[1]^[2] Its acylated derivative megestrol acetate is also a progestogen, which, in contrast to megestrol itself, has been extensively used as a pharmaceutical drug.^[1]^[2]

Synthesis

Megestrol synthesis:^[3] U.S. Patent 2,891,079

References

1 2 F.. Macdonald (1997). Dictionary of Pharmacological Agents. CRC Press. p. 1267. ISBN 978-0-412-46630-4. Retrieved 12 May 2012.
1 2 Index Nominum 2000: International Drug Directory. Taylor & Francis US. 2000. p. 641. ISBN 978-3-88763-075-1. Retrieved 28 May 2012.
↑ Ringold, H. J.; Ruelas, J. P.; Batres, E.; Djerassi, C. (1959). "Steroids. CXVIII.16-Methyl Derivatives of 17α-Hydroxyprogesterone and of Reichstein's Substance "S"". Journal of the American Chemical Society 81 (14): 3712. doi:10.1021/ja01523a055.

Progestogenics

Receptor
(ligands)

Agonists	3,8-Dihydrodiligustilide 5α-Dihydroprogesterone 20α-Dihydroprogesterone 11-Dehydroprogesterone 11-Deoxycorticosterone 17α-Hydroxyprogesterone 19-Norprogesterone Δ^4-Tibolone Algestone Algestone acetonide Algestone acetophenide Allylestrenol Altrenogest Amadinone Amadinone acetate Anagestone Anagestone acetate Canrenoic acid Canrenone Chlormadinone Chlormadinone acetate Cingestol Cismadinone Cismadinone acetate Clogestone Clogestone acetate Clomegestone Clometerone Cyproterone acetate Danazol Delmadinone Delmadinone acetate Demegestone Desogestrel Dienogest Dimethisterone Diosgenin Drospirenone Dydrogesterone Edogesterone Ethisterone Ethynerone Etonogestrel Etynodiol Etynodiol diacetate Flugestone Flugestone acetate Gestaclone Gestadienol Gestodene Gestonorone Gestonorone caproate Gestovister Gestrinone Gestronol Guggulsterone Haloprogesterone Hydromadinone Hydroxyprogesterone acetate Hydroxyprogesterone caproate Hydroxyprogesterone heptanoate Hydroxyprogesterone hexanoate Levonorgestrel Lutenyl Lynestrenol Medrogestone Medroxyprogesterone Medroxyprogesterone acetate Megestrol Megestrol acetate Melengestrol Melengestrol acetate Mespirenone Methylestrenolone Methynodiol Methynodiol diacetate Mometasone furoate Nandrolone Nestorone Nomegestrol Nomegestrol acetate Norelgestromin Norethisterone (norethindrone) Norethisterone acetate Norethisterone acetate oxime Norethisterone enanthate Noretynodrel Norgesterone Norgestimate Norgestomet Norgestrel Norgestrienone Norvinisterone Org-2058 Oxogestone Oxogestone phenpropionate Pentagestrone Potassium canrenoate Progesterone Proligestone Promegestone Retroprogesterone Riligustilide Quingestanol Quingestanol acetate Quingestrone Segesterone Spironenone Spironolactone Tanaproget Tetrahydrogestrinone Tibolone Tigestol Tosagestin Trengestone Trimegestone ZM-182,345

Mixed (SPRMs)	Apigenin Asoprisnil Asoprisnil ecamate Kaempferol J1042 LG-120,838 Naringenin Syringic acid Telapristone Antagonistic: Mifepristone Org-31710 Org-33628 Ulipristal acetate ZK-137,316

Antagonists	3α-Hydroxytibolone 3β-Hydroxytibolone Aglepristone Lilopristone Lonaprisan Onapristone Toripristone Valproic acid Vilaprisan ZM-150,271 ZM-172,406

Enzyme

Modulators	See here instead (modulators of 20,22-desmolase, 17α-hydroxylase/17,20-lyase, 3β-HSD, and 21-hydroxylase).

Others

Precursors/prohormones	Cholesterol 22R-Hydroxycholesterol 20α,22R-Dihydroxycholesterol Pregnenolone Pregnenolone sulfate 17-Hydroxypregnenolone

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: Androgenics • Estrogenics • Glucocorticoids • Mineralocorticoids

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