Syntheses of bis(indolyl)-piperazine alkaloids, dragmacidin B and C, and dihydrohamacanthin A
作者:Tomomi Kawasaki、Kohsuke Ohno、Hidetaka Enoki、Yasuko Umemoto、Masanori Sakamoto
DOI:10.1016/s0040-4039(02)00771-2
日期:2002.6
The syntheses of trans- and cis-isomers of dragmacidin C and 3,4-dihydrohamacanthin A, and dragmacidin B have been accomplished by condensation of two indolylglycines followed by cyclization and reduction. The relative stereochemistry of dragmacidin C was confirmed to be cis, which is distinct from that of other dragmacidins. (C) 2002 Elsevier Science Ltd. All rights reserved.