(12Z,22Z,24R,5S,8S)-8-((E)-4-((2-hydroxybenzyl)thio)but-1-en-1-yl)-5-isopropyl-24-methyl-24,25-dihydro-7-oxa-4,11-diaza-1(4,2),2(2,4)-dithiazolacyclododecaphane-3,6,10-trione