2-methoxy-N,N,5-trimethyl-7-(trifluoroacetyl)-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine 、 K2CO3 methanol water 以to provide 17 mg (68%) of 2-methoxy-N,N,5-trimethyl-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine的产率得到2-methoxy-N,N,5-trimethyl-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine