Heterocylic aromatics such as pyridine and pyrimidines also give a somewhat similar set of bands in the 1600 cm region . 杂环芳香族结构类如吡啶、嘧啶类化合物在1600厘米1(625微米)区域也有相似的一组谱带。
Synthesis of - d - glucoside - containing 5 - fluorouracil derivatives 氟尿嘧啶类抗肿瘤药物的合成
Heterocylic aromatics such as pyridine and pyrimidines also give a somewhat similar set of bands in the 1600 cm region 杂环芳香族结构类如吡啶、嘧啶类化合物在1600厘米1 ( 6 25微米)区域也有相似的一组谱带。
More than 30 types of products out of these three series have been sold to germany , france , japan , america , italy and singapore 酮类、嘧啶类、嘌呤类产品尤为擅长,三大类中已有三十余只产品出口德国、法国、日本、美国、意大利、新加坡等国家。
5 - fu is a inhibitor for purine metabolism and able to suppress various animal tumors . it can suppress thymidine synthetase to affect dna synthesis . in addition , it can also affect rna 化疗药物: 5 - fu为嘧啶类抗代谢药,对多种动物肿瘤有抑制作用,可抑制胸腺嘧啶脱氧核甘合成镅,影响dna的生物合成,此外,还可以作用于rna 。