作者:Jun Wu、Peng-Na Wang、Xu Xu、Yi-Qin Yang、Shi-Fa Wang
DOI:10.14233/ajchem.2014.17778
日期:——
A new series of pinene-2-alkyl amino pyrimidines were synthesized from (-)-b-pinene. (+)-No-pinone was obtained from (-)-b-pinene by selective oxidation with potassium permanganate and it was reacted with aromatic aldehydes including benzaldehyde, p-methylbenzaldehyde, p-methoxylbenzaldehyde, p-hydroxybenzaldehyde, p-chlorobenzaldehyde, p-nitrobenzaldehyde, p-fluorobenzaldehyde, o-chlorobenzaldehyde, m-nitrobenzaldehyde, o-vanillin and furfural catalyzed with alkali catalysts to get optically active 3-arylidenenopinones 2a-2l. Then in the alkali catalytic conditions, they were used to synthesize pinanyl-2-amino pyrimidines (3a-3l) with guanidine hydrochloride. The structures of the synthesized compounds were identified by 1H NMR, 13C NMR, FT-IR, GC-MS and elemental analysis. The antimicrobial activity of the newly synthesized pinanyl-2-amino pyrimidines (3a-3l) was done against C. albicans, A. niger, G. tropicalis, E. coli, S. aureus, B. Subtilis and P. fluorescens. It has been observed that compounds 3a and 3g have strong inhibition effect against Candida albicans, 3g has strong inhibition effect against Aspergillus niger, while 3g also has strong inhibition effect against Candida tropicalis.
以(-)-b-蒎烯为原料合成了一系列新的蒎烯-2-烷基氨基嘧啶。对氯苯甲醛、对硝基苯甲醛、对氟苯甲醛、邻氯苯甲醛、间硝基苯甲醛、邻香兰素和糠醛在碱催化剂的催化下,得到具有光学活性的 3-芳基亚烯炔酮 2a-2l。然后在碱催化条件下,用盐酸胍合成蒎烷基-2-氨基嘧啶(3a-3l)。通过 1H NMR、13C NMR、FT-IR、GC-MS 和元素分析鉴定了合成化合物的结构。新合成的蒎烷基-2-氨基嘧啶(3a-3l)对白僵菌、黑僵菌、热带鹅膏菌、大肠杆菌、金黄色葡萄球菌、枯草杆菌和荧光团菌具有抗菌活性。据观察,化合物 3a 和 3g 对白色念珠菌有很强的抑制作用,3g 对黑曲霉有很强的抑制作用,而 3g 对热带念珠菌也有很强的抑制作用。