benzenesulfonic acid 4-[4-phenylsulfonyloxy-2-(pyrido[2,3-d]pyrimidin-4-ylamino)-cyclohexa-1,3-dienylsulfanyl]-phenyl ester 、
三氟乙酸 生成 benzenesulfonic acid 4-[4-phenylsulfonyloxy-2-(pyrido[2,3-d]pyrimidin-4-ylamino)-cyclohexa-1,3-dienylsulfanyl]-phenyl ester trifluoroacetate