2′-Methylpyrazolo[4′,3′:16,17]androst-5-en-3β-ol
Hu-ling Zheng, Peng Xia, Ying Chen
Acta Crystallographica Section E · 2009
doi:10.1107/s1600536809019539 (opens in a new tab)
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Abstract
In the title compound, C21H30N2O, 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. Intermolecular 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.
Abstract licence: CC BY
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