Mycestericins D, E, F and G were isolated from the culture broth of Mycelia sterilia ATCC 20349 as potent immunosuppressants. Mycestericins F and G were identical with dihydromycestericins D and E, respectively. Their absolute configurations were determined by use of the modified MOSHER'S method and by comparison of the CD spectra of their benzoate derivatives with those of synthetic analogs. Mycestericins D, E, F and G suppressed the proliferation of lymphocytes in the mouse allogeneic mixed lymphocyte reaction.
Mycestericins D、E、F 和 G 是从 Mycelia sterilia A
TCC 20349 的培养液中分离出的强效
免疫抑制剂。Mycestericins F 和 G 分别与二氢美克斯特里辛 D 和 E 相同。通过使用修饰的 MOSHER 方法和比较它们的
苯甲酸酯衍
生物的圆二色光谱与合成类似物的光谱,确定了它们的绝对构型。Mycestericins D、E、F 和 G 抑制了小鼠同种异体混合淋巴细胞反应中淋巴细胞的增殖。