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The lithiation of N-tert-butoxycarbonyl (N-Boc)-1,2,3,4-tetrahydroisoquinoline was optimized by in situ IR (ReactIR) spectroscopy… Expand The molluscicidal activity of Hammada scoparia leaf extracts and the principal alkaloids isolated from them (carnegine and N… Expand The cytochrome P-450 monooxygenase system has been implicated in plant utilization by at least three species ofDrosophila (D… Expand The different approaches towards the total synthesis of carnegine, a simple tetrahydroisoquinoline alkaloid isolated from several… Expand Abstract Salsolidine and 2-methyl,1,2,3,4-tetrahydro-β-carboline were isolated from Haloxylon articulatum (growing in Egypt… Expand Metabolism of some insecticides and toxic natural plant compounds is known to involve cytochrome P450 enzymes. Correlations… Expand A series of 1,2,3,4-tetrahydro-, 3,4-dihydro-, and fully aromatic isoquinolines were tested as substrates and/or inactivators of… Expand The alkaloid composition of the giant cactus, Carnegiea gigantea Br. & R., was studied. Chromatographic separation led to the… Expand Seven pairs of monoquaternary enantiomeric neuromuscular junction blocking agents were prepared in which the carbon asymmetry is… Expand The tallest cactus in the United States, the saguaro, is restricted to southern Arizona in this country. When the saguaro is… Expand