(R)-9-(1-Benzyloxycarbonylamino-cyclopropyl)-8-fluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acid 在
palladium on activated charcoal
氢气 作用下,
以
溶剂黄146 为溶剂,
反应 2.0h,
生成 (R)-10-(1-aminocyclopropyl)-9-fluoro-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido<1,2,3-de>-1,4-benzoxazine-6-carboxylic acid