Two new sulfur-containing amides, entadamide A (1) and entadamide B (2), isolated from the seeds of Entada phaseoloides, were synthesized by the addition reaction of methanethiol to propiolic acid (5) followed by condensation with ethanolamine by the use of dicyclohexylcarbadiimide. These compounds inhibited the 5-lipoxygenase activity of RBL-1 cells at 10(-4) g/ml. This finding suggests that entadamides
从Entada phaseoloides的种子中分离出的两种新的含
硫酰胺entadamide A(1)和entadamide B(2)是通过
甲硫醇与
丙酸(5)的加成反应,然后与
乙醇胺缩合合成的二环己基碳二
亚胺。这些化合物以10(-4)g / ml抑制RBL-1细胞的5-脂氧合酶活性。这一发现表明,他达米德A和B可能是新型抗炎药的例子。