反应详情

is obtained analogously to the method as described in Step 1.2 but using [4-(3-amino-pyridin-2-ylamino)-2-chloro-phenyl]-acetic acid ethyl ester instead of [4-(3-amino-pyridin-2-ylamino)-phenyl]-acetic acid methyl ester as a starting material. ES-MS: 316.1 [M+H]+; single peak at tR=4.24 min (System 1); Rf=0.16 (Hexane/EtOAc, 1:1).

1. customis obtained analogously to the method