| abstract |
PROCEDURE FOR THE PREPARATION OF DEOXIFRUCTOSIL-SEROTONIN DOUBLE SULPHATE AND CREATININE. IT INCLUDES: A) ADDING 1-METHYL-HYDANTOIN-2-IMIDE TO AN AQUEOUS SOLUTION OF 1-DEOXY- (5-HYDROXITRIPTAMINO) -D-FRUCTOSE CONTAINING SULFURIC ACID AT PH OF 3; B) SEPARATE FROM THE REACTIONAL MEDIUM THE DOUBLE SULPHATE OF 1-DEOXY- (5-HYDROXITRIPTAMINO) -D-FRUCTOSE AND OF 1-METHYL-HYDANTOIN-2-IMIDE, BY SUBSEQUENT CONCENTRATION OF THE OBTAINED SOLUTION AND ADDITION OF A MIXED SOLVENT WATER, OF THE ALCOHOL TYPE OF 1 TO 4 CARBON ATOMS OR KETONE, ESPECIALLY ETHANOL OR ACETONE, TO CAUSE THE CRYSTALIZATION OF THE DESIRED PRODUCT; AND C) SEPARATE, THROUGH FILTRATION, THE CRYSTALS FORMED AND THEY DRY. |