1 K2N Ethyl [(2s)-5-amino-2-methyl-3-phenyl-1,2-dihydropyrido[3,4-B]pyrazin-7-yl]carbamate 1.000 2 G2N Ethyl [(2r)-5-amino-2-methyl-3-phenyl-1,2-dihydropyrido[3,4-B]pyrazin-7-yl]carbamate 1.000