Patent ID: 8648111

Claim:
An N1-2-thiophen-2-ylethyl-N2-substituted biguanide derivative of formula (I) or a pharmaceutically acceptable salt thereof: wherein, R is C 1 -C 8 alkyl; allyl; C 1 -C 8 alkoxyalkyl; C 3 -C 7 cycloalkyl; C 3 -C 7 cycloalkylC 1 -C 3 alkyl; substituted or non-substituted phenyl or phenylC 1 -C 3 alkyl; substituted or non-substituted naphthyl or naphthylC 1 -C 3 alkyl; or adamantyl; and R 1 is hydrogen or C 1 -C 6 alkyl.