英文名称:4H-Pyran-4-one,6-[(1R)-1-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)ethyl]-2,3-dihydro-3,5-dimethyl-2-(1-methylethyl)-,(2S,3S)- (9CI); 4H-Pyran-4-one,6-[1-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)ethyl]-2,3-dihydro-3,5-dimethyl-2-(1-methylethyl)-,[2S-[2a,3b,6(S*)]]-; Vallartanone A