ASYMMETRIC SYNTHESIS;
BENZOQUINOLIZIDINE;
AZAPODOPHYLLOTOXIN;
STEREOCONTROLLED REDUCTION OF IMINIUM;
D O I:
暂无
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The alkylation of 2-cyano-6-phenyloxazolopiperidine synthon 1 gave after reduction, the optically active pivotal amine 4. Bischler-Napieralski reaction of different aryl amides derived from 4 furnished the podophyllotoxin analogues 7, 8, and 9 after NaBH4 reduction.