Patent ID: 6075147
Filing Date: 2000-06-13
Classification: C07D

Abstract:
A ketone of Formula III ##STR35## wherein L is ortho-, meta- or para-phenylene;each R.sup.a is hydrogen or the two together form a double bond; andR is (3-12C)alkyl, (3-12C)alkenyl, (3-12C)alkynyl, 2-phenylcyclopropyl or R.sup.b -(1-6C)alkyl in which R.sup.b is (3-8C)cycloalkyl, phenyl, tetrahydropyranyl, morpholino, piperidino or pyrrolidino wherein a phenyl group of the radical R may bear a 4-substituent selected from halo, (1-2C)alkyl and (1-2C)alkoxy; a cyclohexyl group of the radical R may bear a 4-substituent selected from (1-2C)alkyl and (1-2C)alkoxy; and in which one or two methylene groups of a (3-12C)alkyl, (3-12C)alkenyl, (3-12C)alkynyl, or the alkyl portion of R.sup.b -(1-6C)alkyl may be replaced by an oxy group; and further provided that at least two carbon atoms separate any oxygens or nitrogens in the residue --NHR.