5-[(5E,7E)-(2S,4R)-10-((1S,2R)-2-chloro-cyclopropyl)-4-trityloxy-deca-5,7-dien-9-yne-2-sulfonyl]-1-phenyl-1H-tetrazole

6-{5-[6-(2-chloro-cyclopropyl)-hexa-1,3-dien-5-ynyl]-1-hydroxy-9-methoxy-7,10,12-trimethyl-3-oxo-4,15-dioxa-bicyclo[9.3.1]pentadec-7-en-13-yloxy}-7-methoxy-4,7a-dimethyl-3-triisopropylsilanyl-tetrahydro-pyrano[3,4-d]oxazol-2-one