Turosteride

Turosteride (FCE-26,073) is a selective inhibitor of the enzyme 5α-reductase which was under investigation by GlaxoSmithKline for the treatment of benign prostatic hyperplasia (BPH), but was never marketed.^[1][2][3] Similarly to finasteride, turosteride is selective for the type II isoform of 5α-redcutase, with about 15-fold selectivity for it over type I isoform of the enzyme.^[4][5] In animal studies it has been shown to inhibit prostate size and retard tumor growth.^[2][3][6][7] It may also be useful for the treatment of acne and hair loss.^[8]

Other names1-(4-methyl-3-oxo-4-aza-5-alpha-androstane-17-beta-carbonyl)-1,3- diisopropylurea

Routes of
administrationOral

ATC code

• none

Legal status

• Never marketed

Quick facts Clinical data, Other names ...

Turosteride

Clinical data
Other names	1-(4-methyl-3-oxo-4-aza-5-alpha-androstane-17-beta-carbonyl)-1,3- diisopropylurea
Routes of administration	Oral
ATC code	none
Legal status
Legal status	Never marketed
Identifiers
IUPAC name (4aR,4bS,6aS,7S,9aS,9bS,11aR)-1,4a,6a-trimethyl-2-oxo-N-(propan-2-yl)-N-(propan-2-ylcarbamoyl)hexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
CAS Number	137099-09-3
PubChem CID	65986
ChemSpider	59380
UNII	LU1LTK666W
CompTox Dashboard (EPA)	DTXSID001029394
Chemical and physical data
Formula	C27H45N3O3
Molar mass	459.675 g·mol−1
3D model (JSmol)	Interactive image
SMILES O=C(NC(C)C)N(C(=O)[C@@H]2[C@]1(CC[C@H]3[C@H]([C@@H]1CC2)CC[C@H]4N(C(=O)CC[C@]34C)C)C)C(C)C
InChI InChI=1S/C27H45N3O3/c1-16(2)28-25(33)30(17(3)4)24(32)21-10-9-19-18-8-11-22-27(6,15-13-23(31)29(22)7)20(18)12-14-26(19,21)5/h16-22H,8-15H2,1-7H3,(H,28,33)/t18-,19-,20-,21+,22+,26-,27+/m0/s1 Key:WMPQMBUXZHMEFZ-YJPJVVPASA-N

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