KLC klc (3~{S},4~{R},8~{S},10~{S},12~{S},14~{S})-14-[(~{Z},4~{R})-4-(hydroxymethyl)hex-2-en-2-yl]-4,12-dimethoxy-9,9-dimethyl-3,8,10-tris(oxidanyl)-1-oxacyclotetradecan-2-one KLC