including COSY, HMQC, HMBC, and NOESY correlations. Compound 1 showed strong antimicrobial activity against all Gram (+) species tested (MICs = 3.12⁻6.25 µg/mL). In addition, the synthesis and antibacterial activity of some compounds structurally related to compound 1 (including four new compounds) are reported. A SAR study for these compounds was performed based on the results obtained by using molecular
Annona emarginata(Schltdl。)H. Rainer,通常称为“arachichú”,“araticú”,“aratigú”和“ yerba mora”,是在阿根廷生长的植物。在民间医学中,输液和汤剂可用于漱口
水,以防喉咙痛和减轻牙痛。将植物用于这些目的的另一种方法是咀嚼其叶子。根据临床和实验室标准协会的规程,对e桐的树皮,花朵,叶子和果实的
提取物进行了针对一组革兰氏(+)和革兰氏(-)致病菌的抗菌检测。茎皮和叶片的
提取物对被测细菌表现出中等活性,其值在250-1000 µg / mL之间。关于花
提取物,少极性
提取物(己烷,
二氯甲烷)对耐
甲氧西林的
金黄色葡萄球菌A
TCC 25923和耐
甲氧西林的
金黄色葡萄球菌A
TCC 43300表现出非常强的抗菌活性,其值在16⁻125µg / mL之间。此外,己烷
提取物还具有抗肺炎克雷伯菌的活性(MIC = 250 µg / mL)。