Asymmetric synthesis of furo[3,2-i]indolizines from L-malic acid
摘要:
A chiral enamide 6, derived from L-malic acid, was converted to furo-indolizine 2 via N-acyliminium ion cyclization. Furo-indolizine 2 was transformed to indolizine derivatives 8 and 9 which have a substituent at angular position. (C) 1999 Elsevier Science Ltd. All rights reserved.
Asymmetric synthesis of furo[3,2-i]indolizines from L-malic acid
摘要:
A chiral enamide 6, derived from L-malic acid, was converted to furo-indolizine 2 via N-acyliminium ion cyclization. Furo-indolizine 2 was transformed to indolizine derivatives 8 and 9 which have a substituent at angular position. (C) 1999 Elsevier Science Ltd. All rights reserved.