反应详情

The title compound is prepared analogously to Example 52(a) from racemic 2-[(dimethylamino)methyl]piperidine and D-(-)-tartaric acid. The ditartrate melted at 191°-192.5° C. The base, with a boiling point 17 mm Hg 88°-94° C., had a content of (+)-enantiomer determined by reaction with (S)-(-)-1-phenylethylisocyanate and subsequent HPLC investigation, of 98.5%. [α]D20 =+64° (ethanol).

1. customwith a boiling point 17 mm Hg 88°-94° C.