(3-S-trans)-4-amino-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile, methanesulfonic acid salt 、
Boc-D-苯丙氨酸 以
乙酸乙酯 为溶剂,
生成 (3S*,4R*)-N-(6-Cyano-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl)-N2-[(1,1-dimethylethoxy)carbonyl]-D-phenylalaninamide