are selected from hcl the choice of catalyst in the hydrogenolysis reactions described herein will be readily apparent to the skilled artisan suitable catalysts include palladium on carbon pd oh 2 raney nickel tungsten catalysts rh al 2 o 3 and the like palladium catalysts are preferred such as palladium on carbon u201c seeding u201d refers to the exposure of a solution to crystals seed crystals in order to catalyze the precipitation of crystals from the solution seeding can be done by addition of the seed crystals in a solid dry form or the seed crystals may be added in the form of a slurry in a liquid u201c seed crystals u201d may be crystals of the same compound being induced to precipitate or they may be of a different compound in the present case seeding with a slurry of the same compound is preferred u201c aging u201d means to maintain the solution being aged at a constant temperature and volume for a certain period of time the amount of time the reactions are aged in the present invention is not critical unless specifically noted otherwise and can be readily discerned by those skilled in the art u201c filtering u201d means to pass the solution through some medium so that particulate matter is removed the choice of medium is not critical and can be readily chosen by the average practitioner filtering may be accomplished by passing through celite solka floc sand glass frit diatomaceous earth and the like u201c alcohol u201d is intended to mean an organic molecule of 1 to 5 carbons in a straight or branched chain with at least on hydroxyl group as the prominent active.