146. Synthetical experiments on protopine and allied alkaloids. Part II. New synthesis of the berberine ring-system, and of a ring-homologue of the aporphine alkaloids
作者:Thomas S. Stevens
DOI:10.1039/jr9350000663
日期:——
Synth�se du 4-m�thoxy-6,7-m�thyl�ne-dioxy-ph�nanthr�ne et de l?acide 4-m�thoxy-5,6-m�thyl�ne-dioxy-9-ph�nanthr�ne-carbonique