A New Method for the Preparation of Phenyl-Substituted cis-Enediyne from a Phthalide Derivative.
作者:Hisao NEMOTO、Junya KIKUISHI、Masayuki SHIBUYA
DOI:10.1248/cpb.44.2186
日期:——
Conversion of the phthalide derivative 5 to the enediynes 6 and 11 are described. Treatment of 5 with 1, 8-diazabicyclo[5.4.0]undec-7-ene in hexamethylphosphoric triamide stereoselectively gives 6, which can be used as an efficient DNA-damaging biradical.