专利号:WO-2006008493-A1 优先权日:2004-07-23 标 题 :Synthesis of polyhydroxylated alkaloids 发明人:NASH ROBERT JAMES; FLEET GEORGE WILLIAM JOHN; VAN AMEIJDE JEROEN; HORNE GRAEME 权利人:MNL PHARMA LTD; NASH ROBERT JAMES; FLEET GEORGE WILLIAM JOHN; VAN AMEIJDE JEROEN; HORNE GRAEME 摘要:A process for the production of a polyhydroxylated bicyclic (e.g. pyrrolizidine such as casuarine (10), indolizidine or quinolizidine) alkaloid comprises the cyclisation of a pyrrolidine or piperidine intermediate having three or more free hydroxyl groups.