Compounds having the formula: ##STR1## wherein R.sub.1 is H or an optionally substituted acyl group having 1-12 carbon atoms, R.sub.2 is H or an acyl group having 1-12 carbon atoms and R.sub.3 is C, N--CH.sub.3 or a direct bond; and mono- or bisquaternary ammonium compounds thereof and acid addition salts of the non- or mono-quaternary ammonium compounds. Process for the preparation of these compounds. Compositions comprising at least one of the above compounds as the active ingredient. The compounds are favorable neuromuscular blocking agents.
公式为:##STR1## 其中 R.sub.1 为 H 或具有1-12个碳原子的可选取代酰基,R.sub.2 为 H 或具有1-12个碳原子的酰基,R.sub.3 为 C、N-CH.sub.3 或直接键;以及其单或双季铵化合物和非或单季铵化合物的酸加成盐。制备这些化合物的方法。包含上述至少一种化合物作为活性成分的组合物。这些化合物是有利的神经肌肉阻滞剂。