Quinone-methide triterpenes of the tingenone series were evaluated for their antimicrobial activity. These compounds were effective against Bacillus cereus, B. subtilis, Sarcinalutea, Staphylococcus aureus, Microsporum gypseum and a Gramnegative bacterium, Klebsiella pneumoniae. Under acidic conditions, the quinone-methide part of these compounds rear ranged into the divinyl-phenolic system, and the antimicrobial activity was thus lost.
                                    对
丁烯酮系列的醌-
甲醚三
萜类化合物的抗菌活性进行了评估。这些化合物对蜡样芽孢杆菌、枯草杆菌、沙氏杆菌、
金黄色葡萄球菌、
石膏样小孢子菌和革兰氏阴性菌肺炎克雷伯氏菌有效。在酸性条件下,这些化合物中的醌-甲酰胺部分重新变成了二
乙烯基-
酚系统,从而失去了抗菌活性。