| 摘要 |
<p>Cpds. of formula: R1 = alkyl; R2=alkyl, alkoxy; R3=alkyl, alkenyl, alkynyl; R4 = halogen; n = 0 to 4. Short-acting narcotics useful for minor surgery in man and animals. Prepd. by conventional methods, esp. by reaction of salicyclic acid esters or 2-hydroxyphenylalkanoic acid esters with reactive esters of hydroxyacetamides.</p> |
