| 摘要 |
<p>The invention relates to compounds having formula (I), wherein R1 is H or an acyl group having 1-12 carbon atoms, R2 and R3 are an alkyl or aralkyl group having 1-12 carbon atoms, or when taken together form with the nitrogen atom a heterocyclic amino radical; and R4 is H or an acyl group having 1-12 carbon atoms; and mono- or bisquaternary ammonium compounds thereof and acid addition salts of the non- or mono-quaternary ammonium compounds and to a process for preparing these compounds. The compounds are neuromuscular blocking agents with a fast onset and a short duration and which exhibit no or hardly any blood pressure drop.</p> |
