Electroorganic chemistry. 113. Synthesis of (+)- and (-)-N-methylpseudoconhydrine from L-lysine using anodic oxidation as the key reaction
作者:Tatsuya Shono、Yoshihiro Matsumura、Osamu Onomura、Masaaki Sato
DOI:10.1021/jo00252a048
日期:1988.8
A Short and Practical Synthesis of (+)-Pseudoconhydrine and (+)-N-Methylpseudoconhydrine via Osmium Catalyzed Asymmetric Dihydroxylation
作者:Hiroki Takahata、Kumiko Inose、Takefumi Momose
DOI:10.3987/com-93-6585
日期:——
A short and practical synthesis of (+)-pseudoconhydrine (1) and (+)-N-methylpseudoconhydrine (2) has been achieved by starting with asymmetric dihydroxylation of the alpha-amino acid-derived N-alkenylurethane (3).
Novel reduction of 3-hydroxypyridine and its use in the enantioselective synthesis of (+)-pseudoconhydrine and (+)-N-methylpseudoconhydrine
3-Hydroxypyridine is reduced with sodium borohydride in the presence of benzyl chloroformate to give 1-benzyloxycarbonyl-5-hydroxy-2-piperideine which is transformed into (+)-pseudoconhydrine and (+)-N-methyl-pseudoconhydrine in five steps involving a lipase-mediated kinetic resolution.