Acetic acid (R)-2-acetyl-6,7,11-trimethoxy-5-oxo-1,2,3,4,4a,5,12,12a-octahydro-naphthacen-2-yl ester

(1S,2R,4R)-4-Hydroxy-2-(5-methoxy-1-methoxymethoxy-naphthalen-2-ylmethyl)-cyclohexanecarboxylic acid methyl ester