苯达莫司汀中间体
1.Ethyl4-(5-amino-1-methyl-1H-benzo[d]imidazole
-2-yl)butanoate
CAS NO: 3543-73-5
2.
Ethyl
4-(1-methyl-5-nitro-1H-benzo[d] imidazol-2-yl)butanoate
CAS NO: 3543-72-4
3.
4-(5-amino-1-methyl-1H-benzimidazol-2-yl)-butyricacid
isopropyl ester