Azastene

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Azastene
Clinical data
Other namesWIN-17625; 4,4,17α-Trimethylandrosta-2,5-dieno(2,3-d)isoxazol-17β-ol
Identifiers
  • (1S,3aS,3bR,10aR,10bS,12aS)-1,6,6,10a,12a-Pentamethyl-2,3,3a,3b,4,6,10,10a,10b,11,12,12a-dodecahydro-1H-cyclopenta[7,8]phenanthro[3,2-d][1,2]oxazol-1-ol
CAS Number
PubChem CID
ChemSpider
UNII
ChEMBL
E number{{#property:P628}}
CompTox Dashboard (EPA)
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Chemical and physical data
FormulaC23H33NO2
Molar mass355.522 g·mol−1
3D model (JSmol)
  • C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C)O)CC=C4[C@@]3(CC5=C(C4(C)C)ON=C5)C
  • InChI=1S/C23H33NO2/c1-20(2)18-7-6-15-16(21(18,3)12-14-13-24-26-19(14)20)8-10-22(4)17(15)9-11-23(22,5)25/h7,13,15-17,25H,6,8-12H2,1-5H3/t15-,16+,17+,21-,22+,23+/m1/s1
  • Key:AXLOCHLTNQDFFS-BESJYZOMSA-N

Azastene (INN, USAN) (developmental code name WIN-17625) is a steroidogenesis inhibitor described as a contraceptive, luteolytic, and abortifacient which was never marketed.[1][2] It acts as a competitive inhibitor of 3β-hydroxysteroid dehydrogenase (IC50 = 1 μM), and thereby inhibiting the formation of progesterone, corticosteroids, androgens, and estrogens.[3][4] Due to inhibition of corticosteroid synthesis, azastene is immunosuppressive.[2]

Synthesis

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Azastene synthesis:[5]

One synthesis of this compound involves initial alkylation of methyl testosterone by means of strong base and methyl iodide to afford the 4,4-dimethyl derivative. Formylation with alkoxide and methyl formate leads to the 2-hydroxymethyl derivative. Reaction of this last with hydroxylamine leads to formation of an isoxazole ring. There is then obtained azastene.

See also

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References

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  5. ^ US 3966926, Potts, Gordon O., "Composition of a steroidal[2,3-d]-isoxazole and method of use thereof", published Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)., assigned to Sterling Drug Inc. .


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