has role macrolide antibiotic metabolite tertiary alcohol secondary alcohol antifungal agent cyclic hemiketal NK154183A (4E,18E)-11,12,13,14,16,17,27a-heptahydroxy-6'-(2-hydroxybutyl)-2,2,11,15,17,28-hexamethyl-2,3,3',3a,4',5',6,6',7,8,9,10,11,12,13,14,15,16,17,22,23,26,27,27a-tetracosahydro-20H-spiro[22,26-methanofuro[2,3-h][1,5]dioxacyclohexacosine-24,2'-pyran]-20-one 770.482 770.98670 A 24-membered macrolide antibiotic isolated from the fermentation broth of Streptomyces sp.NK154183. It exhibits antifungal and antitumour activity against the human colon adenocarcinoma. C41H70O13 CAS:152986-47-5 CCC(O)CC1CCCC2(CC3OC(=O)\C=C\C(C)(O)C(O)C(C)C(O)C(O)C(O)C(C)(O)CCCCC\C=C\C4CC(C)(C)OC4(O)CC(O2)C3C)O1 CHEBI:66629 InChI=1S/C41H70O13/c1-8-28(42)21-29-16-14-19-40(52-29)23-30-25(2)31(53-40)24-41(50)27(22-37(4,5)54-41)15-12-10-9-11-13-18-38(6,48)36(47)34(45)33(44)26(3)35(46)39(7,49)20-17-32(43)51-30/h12,15,17,20,25-31,33-36,42,44-50H,8-11,13-14,16,18-19,21-24H2,1-7H3/b15-12+,20-17+ PMID:9031676 Reaxys:8181910 ZACXIZMUUXGJHL-QTBZMJKBSA-N chebi_ontology spiroketal