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2'-Methyl-pyrazolo[4',3':16,17]androst-5-en-3β-ol.


ABSTRACT: In the title compound, C(21)H(30)N(2)O, there are five fused rings. The A and C rings adopt chair conformations, ring B adopts an 8β,9α-half-chair conformation and ring D adopts a 14α-envelope conformation. The pyrazole ring is planar. Inter-molecular O-H⋯N hydrogen bonds [H⋯N = 1.88 (5) Å] help to stabilize the crystal structure. The absolute structure was deduced from those of the starting materials.

SUBMITTER: Zheng HL 

PROVIDER: S-EPMC2969823 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature

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2'-Methyl-pyrazolo[4',3':16,17]androst-5-en-3β-ol.

Zheng Hu-Ling HL   Xia Peng P   Chen Ying Y  

Acta crystallographica. Section E, Structure reports online 20090529 Pt 6


In the title compound, C(21)H(30)N(2)O, there are five fused rings. The A and C rings adopt chair conformations, ring B adopts an 8β,9α-half-chair conformation and ring D adopts a 14α-envelope conformation. The pyrazole ring is planar. Inter-molecular O-H⋯N hydrogen bonds [H⋯N = 1.88 (5) Å] help to stabilize the crystal structure. The absolute structure was deduced from those of the starting materials. ...[more]

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