abstract |
The present invention provides a compound of the following formula (1S, 2S) -1- (4-hydroxyphenyl) -2- (4-hydroxy-4-phenylpiperidin-1-yl) -1-propanol compound A method for producing mesylate trihydrate. The present invention also includes methods for enantiomeric splitting and isolation of (D)-(-)-tartrate salts of compounds of formula (I). |