Synthesis and antimicrobial testing of 2-amino-6-hydroxymethyl-4-(3<i>H</i>)pyrido[3,2-<i>d</i>]pyrimidinone
作者:James L. Kelley、Ed W. Mclean
DOI:10.1002/jhet.5570180405
日期:1981.6
Synthesis of 2-amino-6-hydroxymethyl-4-(3H)pyrido[3,2-d]pyrimidinone (5) from 2-amino-6-methyl-4-(3H)-pyrido[3,2-d]pyrimidinone (2) was accomplished by selenium dioxide oxidation of 2 to the aldehyde 4 followed by sodium borohydride reduction. Compound 2 was available in four steps from 5-aminouracil or in two steps from 5-nitroisocytosine (3a). Catalytic reduction of 4 or 5 gave a mixture of 2-amino-6-methyl-5
合成2-氨基-6-羟甲基-4-(3 ħ)吡啶并[3,2- d ]嘧啶酮(5)由2-氨基-6-甲基-4-(3- ħ) -吡啶并[3,2- d ]嘧啶酮(2)通过的二氧化硒氧化完成2为醛4,随后硼氢化钠还原。化合物2可从5-氨基尿嘧啶分四步获得,也可从5-硝基异胞嘧啶(3a)分两步获得。催化还原4或5得到2-氨基-6-甲基-5,6,7,8-四氢-4-(3 H)吡啶并[3,2- d ]嘧啶酮(6a)和6-羟甲基化合物6b。这些化合物在大肠杆菌中的7,8-二氢-6-羟甲基蝶呤焦磷酸激酶和7,8-二氢蝶呤合成酶催化的偶合反应中仅表现出弱的抑制活性。没有观察到明显的抗菌活性。