[1] AUSTRALIAN NATL UNIV,RES SCH CHEM,CANBERRA,ACT 0200,AUSTRALIA
来源:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
|
1994年
/
24期
关键词:
D O I:
10.1039/p19940003515
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Concise synthetic routes from cyclopentadiene 4 to the lycoricidine and pancratistatin analogues 13. 14 and 17 have been developed.:The key step involved the silver isocyanate promoted ring opening of the gem-dibromocyclopropane 6 to give, after interception of the intermediate isocyanates by added methanol, the carbamates 7 and 8. The X-ray crystal structures of compounds 13 and 16 have been determined.