115021-83-5 (米尔贝霉素B，5-O-脱甲基-28-脱氧-6,28-环氧-22-羟基-25-[（1E）-1-甲基-1-丙烯基]，（6R，22R，25S）-（9CI）,Milbemycin B,5-O-demethyl-28-deoxy-6,28-epoxy-22-hydroxy-25-[(1E)-1-methyl-1-propenyl]-,(6R,22R,25S)- (9CI))

Milbemycin B,5-O-demethyl-28-deoxy-6,28-epoxy-22-hydroxy-25-[(1E)-1-methyl-1-propenyl]-,(6R,22R,25S)- (9CI);Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-22-hydroxy-25-(1-methyl-1-propenyl)-, (6R,22R,25S(E))-;(3'R,4S,5'S,6S,6'S,8R,10E,13R,14E,16E,20R,21R,24S)-6'-[(E)-But-2-en-2-yl]-3',21,24-trihydroxy-5',11,13,22-tetramethylspiro[3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6,2'-oxane]-2-one;115021-83-5;VM 44866;Antibiotic VM 44866;

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1S/C34H48O8/c1-7-21(4)30-23(6)15-28(35)33(42-30)17-26-16-25(41-33)12-11-20(3)13-19(2)9-8-10-24-18-39-31-29(36)22(5)14-27(32(37)40-26)34(24,31)38/h7-11,14,19,23,25-31,35-36,38H,12-13,15-18H2,1-6H3/b9-8+,20-11+,21-7+,24-10+/t19-,23-,25+,26-,27?,28+,29+,30+,31+,33-,34+/m0/s1

O1[C@@H]2CC=C(C)C[C@@H](C)C=CC=C3CO[C@@H]4[C@@H](C(C)=CC(C(=O)O[C@@H](C2)C[C@@]21[C@@H](C[C@H](C)[C@@H](/C(=C/C)/C)O2)O)[C@@]43O)O |c:3,11,t:9|