作者:Peter Scheiner、Sara Arwin、Manes Eliacin、James Tu
DOI:10.1002/jhet.5570220563
日期:1985.9
1-Aminohypoxanthine (1a), a new positional isomer of guanine, has been obtained from 5-aminoimidazole-4-carboxylic acid hydrazide and triethyl orthoformate. Pyrazolo 11 and triazolo 21 analogues of 1 result from similar reactions of the corresponding o-aminoazole hydrazides. An indirect synthesis involving excess ortho-ester and hydrolysis of the resulting intermediate 6 was found most effective for
从5-氨基咪唑-4-羧酸酰肼和原甲酸三乙酯获得了一种新的鸟嘌呤位置异构体1-氨基次黄嘌呤(1a)。吡唑并11和三唑21个的类似物1个从相应的类似的反应结果ö -aminoazole酰肼。发现一种涉及过量原酸酯和水解所得中间体6的间接合成对1最有效,但是可以直接由3-氨基吡唑-4-羧酸酰肼和原酸酯制备11。三唑被证明对融合的嘧啶酮形成最有抵抗力。1a的核糖苷 (1-氨基肌苷)已合成,表明该方法的多功能性。