3α-Dimethyl-amino-20-(N-methyl-acetamido)-pregn-5-ene.
The title compond, C(26)H(44)N(2)O, is an steroidal alkaloid isolated from the medicinally important plant Sarcococca saligna. The mol-ecule consists of four fused rings (A-D), having chair, half-chair, chair and envelope conformations, respectively. The dimethyl-amino group is axially oriented on ring A, whereas the (N-methyl-acetamido)-ethyl group is attached equatorially on ring D. The crystal structure is stabilized only by van der Waals forces.
H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270,  Pakistan.
S
S
Yousuf
S G
SG
Musharraf
N
N
Iqbal
A
A
Adhikari
M I
MI
Choudhary