9,19-Cyclo-5a,9b-pregnane-3b,20a-diamine, N,N',4,4,14-pentamethyl- (7CI,8CI); 1H,19H-Cyclopropa[9,10]cyclopenta[a]phenanthrene,9,19-cyclopregnane-3,20-diamine deriv.; Cycloprotobuxine D
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