| abstract |
Derivatives of known bio-affecting carboxylic acids, their non-toxic pharmaceutically acceptable acid addition salts and N-oxides as well as processes for preparing those novel derivatives are disclosed. Those derivatives having then wherein R-COO- is the acyloxy residue of a bio-affecting monocarboxylic acid; Y and Y' 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; orthe structural formulan wherein -OOC-R'-COO- is the di(acyloxy) residue of a bio-affecting dicarboxylic acid. |