(1R,3R,5S,6S,9S,11S,15S,16R,17R,18S,19E,21E,23E,25E,27E,29E,31E,33R,35R,36R,37S)-33-[(3-Amino-3,6-dideoxy-β-L-mannopyranosyl)oxy]-1,3,5,6,9,11,17,37-octahydroxy-15,16,18-trimethyl-13-oxo-14,39-diox
abicyclo[33.3.1]nonatriaconta-19,21,23,25,27,29,31-heptaene-36-carboxylic acid