tert-butyl 2-[(7-{2-(cyclopropylmethoxy)-6-[(4-methoxybenzyl)-oxy]phenyl}-2-oxo-1,4-dihydro-2H-pyrido[2,3-d][1,3]oxazin-5-yl)amino]ethylcarbamate 、
盐酸 在
乙酸乙酯 作用下,
以
1,4-二氧六环 为溶剂,
反应 16.0h,
以to give 5-[(2-aminoethyl)amino]-7-[2-(cyclopropylmethoxy)-6-hydroxyphenyl]-1,4-dihydro-2H-pyrido[2,3-d][1,3]oxazin-2-one hydrochloride as a solid (0.013 g, yield; 59%)的产率得到5-[(2-aminoethyl)amino]-7-[2-(cyclopropylmethoxy)-6-hydroxyphenyl]-1,4-dihydro-2H-pyrido[2,3-d][1,3]oxazin-2-one hydrochloride