The invention discloses a new clause of a five membered heterocylic ring compounds of general formula I ##STR00001## and its pharmaceutically or cosmetically acceptable salts, wherein R1, R2, R3, R4, R5, A, B, X and Y are as defined in the specification. The invention also discloses a process for preparation of these compound and their therapeutic and cosmetic applications particularly in the management of aging related and diabetic vascular complications. The compounds in question act by triple action of an AGE (Advanced Glycation Endproducts) breaker, AGE inhibitor and free radical scavenger which make them most suitable in different therapeutic and cosmetic applications. The invention also discloses pharmaceuticals and cosmetic compositions comprising these compounds and method of treatment of diseases caused by accumulation of AGE and/or free radicals in the body cells.