The asymmetric unit of the title compound, C32H51N3O3, consists of two crystallographically independent molecules, A and B; the 2-methylpentane group of molecule A and the propane group of molecule B are each disordered over two sets of sites, with refined site-occupancies of 0.825 (5):0.175 (5) and 0.630 (18):0.370 (18), respectively. In both molecules, the three cyclohexane rings in the steroid fused ring systems adopt chair conformations while the cyclopentane rings adopt envelope and twist conformations in molecules A and B, respectively. In the crystal, N—H
O and C—H
O hydrogen bonds link the two independent molecules together, generating R
2
1(7) and R
2
2(8) ring motifs.
O and C—H
O hydrogen bonds link the two independent molecules together, generating R
2
1(7) and R
2
2(8) ring motifs.


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= 351.6
(4)° with atom C12A at the flap. Meanwhile, molecule B is in a twist
conformation where the cyclopentane (C12B–C16B) ring is twisted about
C16B–C12B bonds, with puckering parameters Q= 0.464 (3) Å and