Synthesis of the Aziridinomitosene Skeleton by Application of Guanidinium Ylide-Mediated Aziridination
作者:Hiroyuki Kojima、Chisato Takahata、David Lemin、Masato Takahashi、Takuya Kumamoto、Waka Nakanishi、Noriyuki Suzuki、Tsutomu Ishikawa
DOI:10.1002/hlca.201200510
日期:2013.3
aziridinomitosene skeleton, a basic core of mitomycin antibiotics, was straightforwardly prepared from N‐(p‐toluenesulfonyl)indole‐2‐carboxaldehyde in 16% overall yield by successive reactions of guanidinium ylide‐mediated aziridination, InCl3‐catalyzed epimerization of trans‐3‐(indol‐2‐yl)aziridine‐2‐carboxylate, leading to the cis‐derivative, and dehydrative cyclization.
腺嘌呤二茂铁骨架是丝裂霉素抗生素的基本核心,它是由N-(对甲苯磺酰基)吲哚-2-羧醛直接进行制备的,总产率为16%,是通过胍基内鎓盐介导的叠氮化,InCl 3催化反式的差向异构化而实现的。 3-(吲哚-2-基)氮丙啶-2-羧酸酯,导致顺式和脱水环化。