Patent ID: 8653304

Claim:
A 2,3-dihydro-1H-indene-2-yl urea compound represented by Formula (Ia) or a pharmaceutically acceptable salt thereof: wherein, n represents an integer of 0 to 4; R 3a represents R 6 O— or (R 6 ) 2 N—; R 3b represents hydrogen, R 6 O— or (R 6 ) 2 N—; R 4a represents alkyl of 1 to 6 carbon atoms (which may be substituted with 1 or more halogen, R 6 O— and/or (R 6 ) 2 N—), R 6 O—, (R 6 ) 2 N— or halogen; R 4b represents alkyl of 1 to 6 carbon atoms (which may be substituted with 1 or more halogen, R 6 O— and/or (R 6 ) 2 N—), cycloalkyl of 3 to 8 carbon atoms (which may be substituted with 1 to 3 R 6 that are each independent; wherein 1 to 3 methylenes constituting a ring may be substituted with each independently —O—, —S—, —C(O)— or —N(R 6 )—; and wherein a carbon atom directly bound to a benzene ring may be substituted with a nitrogen atom), R 6 O—, (R 6 ) 2 N— or halogen; R 5 each independently represents alkyl of 1 to 6 carbon atoms (which may be substituted with 1 or more halogen, R 6 O— and/or (R 6 ) 2 N—), cycloalkyl of 3 to 8 carbon atoms (which may be substituted with 1 to 3 R 6 that are each independent; wherein 1 to 3 methylenes constituting a ring may be each independently substituted with —O—, —S—, —C(O)— or —N(R 6 )—; and wherein a carbon atom directly bound to a benzene ring may be substituted with a nitrogen atom), R 6 O—, (R 6 ) 2 N—, R 6 C(O)NH—, R 6 S(O) 2 NH—, R 6 C(O)—, R 6 OC(O)—, (R 6 ) 2 NC(O)—, cyano or halogen; R 6 each independently represents hydrogen or alkyl of 1 to 6 carbon atoms (which may be substituted with 1 or more halogen); and X represents R 6 O— or (R 6 ) 2 N—.