201788-75-2 (3,23,24-二酮霉素B,3,23,24-Diketomelianin B)

(-)-3,23,24-Diketomelianin B;

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1S/C41H54O9/c1-23(42)48-33-20-31-37(3,4)32(50-36(46)25-13-11-10-12-14-25)21-34(49-24(2)43)41(31,9)30-17-18-39(7)27(15-16-29(39)40(30,33)8)26-19-28(44)35(45)38(5,6)47-22-26/h10-14,16,26-27,30-34H,15,17-22H2,1-9H3/t26-,27+,30+,31+,32-,33-,34+,39+,40+,41-/m1/s1

C1C[C@@]2(C(=CC[C@H]2[C@@H]2CC(=O)C(=O)C(C)(C)OC2)[C@]2(C)[C@H](OC(C)=O)C[C@H]3C(C)(C)[C@H](OC(C4C=CC=CC=4)=O)C[C@H](OC(C)=O)[C@@]3([C@@H]12)C)C