137848-36-3 LY 266070 LY-266070 Vincaleukoblastin-23-oic acid, O4-deacetyl-, 2-(((2-carboxy-8-oxo-7-((2-thienylacetyl)amino)-5-thia-1-azabicyclo(4.2.0)oct-2-en-3-yl)methoxy)carbonyl)hydrazide, S-oxide, (3(5S,6R,7R))-