... J. Org. Chem., Vol. ... by the methyl lost have been documented.1° If the amine alkylation is in- termolecular as predicted, the question of the stereo- chemistry of 14 ... cally pure but whose spectral characteristics (IR C=O stretch at 6.06pm;" NMR 6 NMe at 2.80, OMe at 3.73, J = 11 Hz ...