189560-91-6
(1H-benzimidazol-2-yl-ethyl)carbamic acid tert-butyl ester
→
~95%
4499-07-4
2-(2-氨乙基)苯并咪唑二盐酸盐
95-54-5
1,2-苯二胺
+
107-95-9
β-丙氨酸
~74%