abstract |
New intermediates of the formula. wherein: Q is absent or is. wherein R 4 is methyl, C 1-6 straight or branched chain alkyl, C 1-8 cycloalkyl, phenyl or mixtures thereof; and. 14. R is hydrogen, C1-8 alkyl, C1-8 straight or branched alkoxy chain, halo, nitro or cyano. |