Patent ID: 7799930

Claim:
A 1-alkyl-3-amino indazole of the formula wherein R is a C 2 to C 12 (hydroxy)alkyl group optionally substituted with phenyl, methoxyphenyl, (dimethylamino)phenyl, OR 5 , OC(═O)R 5 , OC(═O)OR 5 , N(R 5 ) 2 , N(R 5 )C(═O)R 5 , N(R 5 )C(═O)OR 5 , or with one or more F atoms; R 1 , R 2 , R 3 and R 4 are independently H, F, Cl, Br, CF 3 , OH, OR 5 , OC(═O)R 5 , OC(═O)OR 5 , N(R 5 ) 2 , N(R 5 )C(═O)R 5 , N(R 5 )C(═O)OR 5 , NO 2 , CN, N 3 , SH, S(O) n R 5 , C(═O)R 5 , COOH, COOR 5 , CON(R 5 ) 2 , C 1 to C 6 alkyl optionally substituted with phenyl, methoxyphenyl, (dimethylamino)phenyl, C(═O)R 5 , COOH, COOR 5 , CON(R 5 ) 2 , CN, OR 5 , OC(═O)R 5 , OC(═O)OR 5 , N(R 5 ) 2 , N(R 5 )C(═O)R 5 , or N(R 5 )C(═O)OR 5 ; or R 1 and R 2 as herein defined taken together form a ring, or R 2 and R 3 as herein defined taken together form a ring, or R 3 and R 4 as herein defined taken together form a ring; provided that at least one of R 2 and R 4 is H, OH, or C 1 to C 6 alkyl; and further provided that not more than one of R 1 , R 2 , R 3 , and R 4 is NO 2 ,CN, or S(O) n R 5 where n =1 or 2; R 5 is C 1 to C 6 alkyl optionally substituted with phenyl, methoxyphenyl, (dimethylamino)phenyl, methoxy, ethoxy, benzyloxy, or with one or more F atoms, or R 5 is phenyl, methoxyphenyl, or (dimethylamino)phenyl; and n=0, 1, or 2.