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Total Synthesis of (+)-Desoxoprosopinine via the Intramolecular Reaction of γ-Aminoallylstannane. -A synthesis of (+)-desoxoprosopinine (V) using the L-glutamic acid derived allylic amine (I) as chiral source is reported. Key step is a moderately diastereoselective intramolecular reaction of the γ-aminoallylstannane (II). -(KADOTA, I.; KAWADA, M.; MURA-MATSU, Y.; YAMAMOTO, Y.; Tetrahedron Lett. 38 (1997) 42, 7469-7470; Dep. Chem., Fac. Sci., Tohoku Univ., Aoba, Sendai 980, Japan; EN)

Asymmetric Total Syntheses of Hydroxylated Piperidine Alkaloids via the Intramolecular Reaction of γ-Aminoallylstannane with Aldehyde.-The key step in the synthesis of (+)-desoxoprosopinine (VIII) and (-)-desoxoprosophylline (IX) is the cyclization of the aminoallylstannane (V). -(KADOTA, I.; KAWADA, M.; MURAMATSU, Y.; YAMAMOTO, Y.; Tetrahedron: Asymmetry 8 (1997) 23, 3887-3893; Dep. Chem., Fac. Sci., Tohoku Univ., Aoba, Sendai 980, Japan; EN)