[1] MIYATA S, et al. WS009 A and B, new endothelin receptor antagonists isolated from Streptomyces sp. No. 89009 I. Taxonomy, fermentation, isolation, physico-chemical properties and biological activities[J]. The Journal of Antibiotics, 1992, 45(7): 1029-1040. DOI:
10.7164/antibiotics.45.1029
