| abstract |
Derivatives of known bio-affecting carboxylic acids, their non-toxic pharmaceuticaily acceptable acid addition salts and N-oxides as well as processes for preparing those novel derivatives are disclosed. Those derivatives having the structural formula …… wherein R-COO- is the acyloxy residue of a bio-affecting monocarboxylic acid;… Y and Y min are each hydrogen or alkyl; n is zero or one;… R1 and R2 are each inter alia alkyl, alkenyl, aryl, cycloalkyl, cycloalkenyl, aralkyl or alkaryl; and R3 is inter alia hydrogen; or the structural formula …… wherein -OOC-R min -COO- is the di(acyloxy) residue of a bio-affecting dicarboxylic acid. |