1H-as-Indaceno3,2-doxacyclododecin-7,15-dione, 2-(6-deoxy-2,3,4-tri-O-methyl-.alpha.-L-mannopyranosyl)oxy-13-(2R,5S,6R)-5-(dimethylamino)tetrahydro-6-methyl-2H-pyran-2-yloxy-9-ethyl-2,3,3a,5a,5b,6,9,10,11,12,13,14,16a,16b-tetradecahydro-4,14-dimethyl-, (2