[EN] PROCESS FOR THE PRODUCTION OF (+)-MORPHINE<br/>[FR] PROCEDE DE PRODUCTION DE (+)-MORPHINE
申请人:STYLACATS LTD
公开号:WO2004022564A2
公开(公告)日:2004-03-18
The invention relates to a process for the production of (+)-morphine from (-)-sinomenine comprising contacting (-)-sinomenine with H2/Pd/C under conditions effective for converting sinomenine to 7(S)-(+)-dihydrosinomenine or 7(R)-(+)-dihydrosinomenine or a mixture thereof; contacting the resulting 7(S)-(+)-dihydrosinomenine or 7(R)-(+)-dihydrosinomenine or a mixture thereof with polyphosphoric acid or Eatons reagent under conditions effective for converting 7(S)-(+)-dihydrosinomenine or 7(R)-(+)-dihydrosinomenine or a mixture thereof to (+)-dihydrocodeinone; contacting the resulting (+)-dihydrocodeinone either with (MeO)3CH followed by TsOH followed by NBA/MeOH under conditions effective for converting (+)-dihydrocodeinone to (+)-1,7-dibromodihydrocodeinone dimethylketal; contacting the resulting (+)-1,7-dibromodihydrocodeinone dimethylketal with t-butoxide followed by acid under conditions effective for converting (+)-1,7-dibromodihydrocodeinone dimethylketal to (+)-1-bromocodeinone; contacting the resulting (+)-1bromocodeinone with LiAlH4 followed by BBr3 under conditions effective for converting (+)-1-bromocodeinone to (+)-morphine; or with o-iodoxybenzoic acid (IBX) and 4-methoxypyridine-N-oxide under conditions effective for converting (+)-dihydrocodeinone to (+)-codeinone; contacting the resulting (+)-codeinone with sodium borohydride followed by BBr3 under conditions effective for converting (+)-codeinone to (+)-morphine; and in either case recovering the resulting (+)-morphine as product. The invention also relates to novel compounds produced during the process.