2 3 dihydro imidazo 1 2 a pyridin 3 yl oxoacetic acid was prepared according to the method described in example 1 but by using 130 ml methylene dichloride in place of ethylene dichloride yield 7 9 gm purity 97 43 hplc 6 methyl 2 p tolyl 2 3 dihydro imidazo 1 2 a pyridin 3 yl oxoacetic acid was prepared according to the method described in example 1 but by using 130 ml hexane in place of ethylene dichloride yield 5 14 gm purity 95 25 hplc 6 methyl 2 p tolyl 2 3 dihydro imidazo 1 2 a pyridin 3 yl oxoacetic acid was prepared according to the method described in example 1 but by using 60 ml toluene in place of ethylene dichloride yield 6 2 gm purity 97 27 hplc 6 methyl 2 p tolyl 2 3 dihydro imidazo 1 2 a pyridin 3 yl oxoacetic acid was prepared according to the method described in example 1 but by using 120 ml methyl tert butyl ether in place of ethylene dichloride yield 10 0 gm purity 95 27 hplc in a clean round bottom flask was charged oxoacetic acid 68 mmol from example 1 100 ml of diethylene glycol hydrazine hydrate 184 mmol and potassium hydroxide 115 mmol the reaction mixture was heated to a temperature of 120 180.