21858-17-3Relevant articles and documents
Asymmetric synthesis of O-methylneferine
Nishimura, Katsumi,Horii, Shinji,Tanahashi, Takao
, p. 865 - 876 (2019/04/26)
Diastereoselective Pictet-Spengler reaction of 2-arylethylamine bearing an N-(R)-1-(1-naphthyl)ethylcarbamoyl group with arylacetaldehyde gave 1-benzyltetrahydroisoquinoline in good yield with moderate diastereoselectivity. The reaction was applied to asymmetric synthesis of O-methyl derivative of neferine, an alkaloid of the lotus embryo, Nelumbo nucifera Gaertner.