2-phenyl-(VII and IX) and 2-methyl-4-(4,5-dialkoxy-2-nitrobenzylidene)oxazol-5-ones (VIII and X) with triethyl phosphite afforded the corresponding 2-phenyl-(XI and XIII) and 6,7-dialkoxy-2-methyloxazolo-[5,4-b]quinolines (XII and XIV), respectively, the former of which were hydrolysed to give the 3-benzamido-quinolin-2-ones (XV and XVI).
用
亚磷酸三乙酯处理2-苯基-(VII和IX)和2-甲基-4-(4,5-二烷氧基-2-硝基亚苄基)
恶唑-5-酮(VIII和X)得到相应的2-苯基-( XI和XIII)和6,7-二烷氧基-2-甲基
恶唑基-[5,4- b ]
喹啉(XII和XIV),分别将其中的前者
水解得到3-benzamido-quinolin-2-ones(XII和XIV)( XV和XVI)。