C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/270.5
C07D 451/06 (2006.01)
Patent
CA 1254565
Abstract The invention relates to the compound norscopine which is useful as a preliminary product for the preparation of valuable pharmaceutical com- positions (e.g. 6,11-dihydro-dibenzo-[b,e]-thiepine-11-N-alkyl-norscopine ethers with a spasmolytic and bronocholytic effect). This compound may be prepared from norscopolamine by hydrogenolysis with complex hydrides. The reaction is preferably carried out with sodium borohydride with ethanol at ambient temperature.
426596
Boehringer Ingelheim International Gmbh
Fetherstonhaugh & Co.
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