(R)-7-(1-Ethoxy-ethoxy)-1-{(2R,3S)-3-[2-((2S,3R)-3-hydroxymethyl-2-methyl-oxiranyl)-ethyl]-2-methyl-oxiranyl}-octan-3-one

(R)-7-(1-Ethoxy-ethoxy)-5-hydroxy-1-{(2R,3S)-3-[2-((2S,3R)-3-hydroxymethyl-2-methyl-oxiranyl)-ethyl]-2-methyl-oxiranyl}-4-methyl-octan-3-one