Discovery and analgesic evaluation of 8-chloro-1,4-dihydropyrido[2,3-b]pyrazine-2,3-dione as a novel potent D-amino acid oxidase inhibitor8-氯-1,4-二氢吡啶 [2,3-b]pyrazine-2,3-二酮作为新型有效的D-氨基酸氧化酶抑制剂的发现和镇痛评估EUROPEAN JOURNAL OF MEDICINAL CHEMISTRYIF5.92016-07-016PREAI