(4R)-triethylsilyloxy-(5R)-ethynyl-(7R)-iodomethyl-1,6-dioxa-spiro[2,5]octane

FR901464

Acetic acid (Z)-(R)-3-{(2R,3R,5S,6S)-6-[(2E,4E)-5-((3R,4R,5R)-4-hydroxy-7-methylene-1,6-dioxa-spiro[2.5]oct-5-yl)-3-methyl-penta-2,4-dienyl]-2,5-dimethyl-tetrahydro-pyran-3-ylcarbamoyl}-1-methyl-allyl ester