Patent ID: 7718690

Claim:
A method of treatment of a disorder or medical condition selected from obesity, Alzheimer's, cognition and schizophrenia, which comprises administering to a patient a therapeutically effective amount of a compound of general formula (I): its stereoisomers, its radioisotopes, its geometric forms, its N-oxide, its pharmaceutically acceptable salts, wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , may be same or different, and represent hydrogen, halogen, hydroxyl, substituted or unsubstituted groups selected from linear or branched (C 1 -C 3 ) alkyl and (C 1 -C 3 ) alkoxy, R 10 represents hydrogen, halogen, hydroxyl, substituted or unsubstituted groups selected from linear or branched (C 1 -C 3 ) alkyl and aryl; R 11 , R 12 , R 13 and R 14 may be same or different, and represent hydrogen and substituted or unsubstituted groups selected from linear or branched (C1-C3) alkyl; “n” is an integer value representing 2; and “m” is an integer ranging from 0 to 2 and preferably m is 1 or 2.