Syntheses and transannular cyclizations of neocarzinostatin-chromophore and esperamicin-calichemicin analogs
摘要:
The syntheses of neocarzinostatin-chromophore (NCS-chr) analogues 3 and 4 and esperamicin-calichemicin analogue 5 using transannular [2,3]-Wittig rearrangement of 12-membered cyclic ether 6 and their transannular cyclizations are described.
Syntheses and transannular cyclizations of neocarzinostatin-chromophore and esperamicin-calichemicin analogs
摘要:
The syntheses of neocarzinostatin-chromophore (NCS-chr) analogues 3 and 4 and esperamicin-calichemicin analogue 5 using transannular [2,3]-Wittig rearrangement of 12-membered cyclic ether 6 and their transannular cyclizations are described.