Enantiospecific Synthesis of (+)-<i>N</i><sub>a</sub>-Methylpericyclivine and (−)-<i>N</i><sub>a</sub>-Methylakuammidine as Well as the Ring-A Oxygenated Natural Products, (+)-10-Methoxy <i>N</i><sub>a</sub>-Methylpericyclivine and 10-Hydroxy <i>N</i><sub>a</sub>-Methylpericyclivine
作者:P. V. V. Srirama Sarma、James M. Cook
DOI:10.1021/ol0526266
日期:2006.3.1
[reaction: see text] The first enantiospecific, regiospecific total synthesis of the enantiomers of N(a)-methylpericyclivine and N(a)-methylakuammidine as well as the ring-A oxygenated natural products (+)-10-methoxy N(a)-methylpericyclivine and 10-hydroxy N(a)-methylpericyclivine was achieved. The lactones (see 19, 22, and 25) are key to the formation of the beta-axial methyl ester moiety.