Newbouldiaquinone and Newbouldiamide: A New Naphthoquinone-Anthraquinone Coupled Pigment and a New Ceramide from Newbouldia laevis
作者:Kenneth Oben Eyong、Karsten Krohn、Hidayat Hussain、Gabriel Ngosong Folefoc、Augustin Ephram Nkengfack、Barbara Schulz、Qunxiu Hu
DOI:10.1248/cpb.53.616
日期:——
Newbouldiaquinone (1), a new naphthoquinone-anthraquinone coupled pigment and a new ceramide named newbouldiamide (2), have been isolated from Newbouldia laevis, besides the known compounds lapachol (3), canthic acid, oleanolic acid, 2-methyl-9,10-anthracenedione, 2-acetylfuro-1,4-naphthoquinone, 2,3-dimethoxy-1,4-benzoquinone, 2-(4-hydroxyphenyl)ethyl triacontanoate, beta-sitosterol and beta-sitosterol
Newbouldiaquinone(1),一种新的萘醌-蒽醌偶联颜料和一种新的神经酰胺,称为newbouldiamide(2),除了已知的化合物lapachol(3),邻苯二甲酸,齐墩果酸,2-甲基-9, 10-蒽二酮,2-乙酰基呋喃-1,4-萘醌,2,3-二甲氧基-1,4-苯醌,2-(4-羟基苯基)乙基十三烷酸酯,β-谷甾醇和β-谷甾醇吡喃葡萄糖苷。分离出的新化合物的结构解析是根据光谱和化学证据进行的。初步研究表明,1具有对革兰氏阳性巨大芽孢杆菌的中等抗菌作用,而3具有中等的除草和抗菌活性。