Synthesis of 20-methyl and 20-cyano isobacteriochlorins: the Witting–photochemical approach
作者:David M. Arnott、Alan R. Battersby、Peter J. Harrison、Graeme B. Henderson、Zhi-Chu Sheng
DOI:10.1039/c39840000525
日期:——
vitamin B12, and their 20-cyano analogues, have been synthesised by a mild route compatible with the side-chains of natural isobacteriochlorins; this involves assembly of the A–D ring system using a Witting-type reaction and finally photochemical ring-closure to the macrocycle.
与维生素B 12及其20-氰基类似物的生物合成研究有关的重要20-甲基异氯霉素已通过与天然异氯霉素侧链相容的温和途径合成。这包括使用Witting型反应组装A-D环系统,最后将光化学环封闭到大环上。