摘要:
Homocarnosine or acylhomocarnosine aluminum and zinc salts of the formula: wherein R represents a hydrogen atom or an acyl group; M represents a zinc atom or an aluminum atom; a denotes 1, 2 or 3; and b denotes 0,1 or 2, provided that when a denotes 1, b denotes 0 and M represents zinc, a hydrogen atom is omitted from the homocarnosine or acylhomocarnosine residue, have antiulcer and wound healing-promoting activities and very low toxicity.
摘要:
A novel crystalline L-carnosine zinc complex is produced by reacting L-carnosine, a zinc salt and an alkali metal compound in an anhydrous or hydrous polar organic solvent. The crystalline L-carnosine zinc complex substantially corresponds to the formula C₉H₁₂N₄O₃Zn and has physical properties clearly different from the known amorphous L-carnosine zinc complex. As compared with the amorphous complex, the crystalline complex is very low in impurity, stable to heat and moisture, and easy to filtrate, and has higher antiulcer activity.
摘要:
A novel crystalline L-carnosine zinc complex is produced by reacting L-carnosine, a zinc salt and an alkali metal compound in an anhydrous or hydrous polar organic solvent. The crystalline L-carnosine zinc complex substantially corresponds to the formula C₉H₁₂N₄O₃Zn and has physical properties clearly different from the known amorphous L-carnosine zinc complex. As compared with the amorphous complex, the crystalline complex is very low in impurity, stable to heat and moisture, and easy to filtrate, and has higher antiulcer activity.
摘要:
Novel 1,5-benzothiazepine derivatives having the formula: wherein R,, R 2 and R 3 each denotes hydrogen, a halogen, a lower alkyl group, a lower alkoxy group or a hydroxy group; R 4 denotes a lower alkyl group, an allyl group, a lower alkoxyalkyl group, a lower alkyl group substituted with a hydroxy group or a halogen, a lower alkylaminoalkyl group or a morpholino lower alkyl group; X denotes a halogen or hydrogen, are produced from corresponding 1,4-benzothiazine by a ring expansion reaction with trimethylhalosilane, hydrogen peroxide and water. The derivatives have analgesic, antipyretic and antiarrhythmic activities.