| 摘要 |
<p>The 2-cyano-3-or 4-(substituted amino) oxanilic acid derivatives of the formula: in which the group appears in the designated 3- or 4- position and R is -H; and alkali metal; +NH4; alkyl of 1 to 6 carbon atoms, inclusive; aralkyl of 7 or 8 carbon atoms; or cycloalkyl of 5 or 6 carbon atoms; R1 is -H or alkyl of 1 to 9 carbon atoms; R2 is -H, alkyl of 1 to 9 carbon atoms or cycloalkyl of 3 to 6 carbon atoms; R1 and R3, together, with the nitrogen atom to which they are attached, are aziridinyl, azetidinyl, pyrrolidinyl, piperidinyl, piperazinyl, 4-lower alkyl-piperazinyl, morpholino or thiomorpholino; and pharmaceutically acceptable acid addition salts thereof are anti-allergic agents.</p> |
