大环内酯,抑制凝血酶刺激的钙进入细胞,TS 155-2, is a macrocyclic lactone related to hygrolidin, is produced by a different Streptomyces species found in oil. It blocks thrombin-evoked calcium (Ca2+) entry into cells. TS155-2 exerts hypotensive, anti-platelet, anti-ischaemic