The Polonovski–Potier Reaction of Berbine N-Oxides. Synthesis of 8-Hydroxymethyl and 8-Methylberbines
作者:Rafael Suau、Francisco Nájera、Rodrigo Rico
DOI:10.1016/s0040-4020(00)00945-5
日期:2000.12
The Polonovski–Potier reaction of trans and cis berbines N-oxides was studied. The 8-cyano derivative obtained from transN-oxides were used to synthesize 8-hydroxymethyl and 8-methyl berbines. This procedure was applied to the stereocontroled synthesis of (8R, 14S)-(−)-8-methylcanadine from (14S)-(−)-canadine.
的Polonovski-博天反应反式和顺berbines Ñ -oxides进行了研究。由反式N-氧化物获得的8-氰基衍生物用于合成8-羟甲基和8-甲基小碱。将该方法应用于从(14 S)-(-)-犬精的立体控制合成(8 R,14 S)-(-)-8-甲基犬精。