ChemInform Abstract: Juanlimycins A (Ia) and B (Ib), Ansamycin Macrodilactams from Streptomyces sp. Issue 43 (21st October 2014) - Zhang, Juanli; Qian, Zhengyi; Wu, Xingkang; Ding, Yanjiao; Li, Jianfang; Lu, Chunhua; Shen, Yuemao