New synthesis of pyrrolo [3,2,1-ij] quinolin-4-one derivatives
摘要:
A new convenient synthesis of pyrrolo[3,2,1-ij]quinolin-4-one derivatives is described. In this method, methyl-7-hydroxquinoline-2-ones are the starting materials onto which the third pyrrolo ring is condensed directly, yielding dehydrogenated methyl-9-hydroxypyrrolo[3,2,1-ij]quinolin-4-ones.