1 5QF 6-[2-(3,4-dimethoxyphenyl)ethylsulfanyl]-8-[4-(2-methoxyethyl)piperazin-1-yl]-3,3-dimethyl-1,4-dihydropyrano[3,4-C]pyridine-5-carbonitrile 1.000 2 5QG 3,3-dimethyl-8-morpholin-4-yl-6-(2-phenylethylsulfanyl)-1,4-dihydropyrano[3,4-C]pyridine-5-carbonitrile 0.737