Novel synthetic approaches to the palmarumycin skeleton
作者:Ian G.C Coutts、Robert W Allcock、Hans W Scheeren
DOI:10.1016/s0040-4039(00)01625-7
日期:2000.11
Oxidation of readily available aminonaphthols 7a and 7b with activated manganese dioxide gives palmarumycin analogues 8a and 8b in good yield. The related benzoquinone monoacetals 10a–c undergo cycloaddition with 3-methoxy-2-pyrone at high pressure to give adducts 12a–c, also possessing the palmarumycin framework.