3-tert-butyl-8-[(3S)-3-(dimethylamino)pyrrolidin-1-yl]-6-methyl-7-phenyl-2H-1,4-benzoxazine-5-carbonitrile 在
盐酸 作用下,
以
1,4-二氧六环 、
乙醚 为溶剂,
以64%的产率得到3-tert-butyl-8-[(3S)-3-(dimethylamino)pyrrolidin-1-yl]-6-methyl-7-phenyl-2H-1,4-benzoxazine-5-carbonitrile hydrochloride