A-Factor【lactone】

A-factor (Streptomyces)

(4R)-Dihydro-3-(6-methylheptanoyl)-4α-(hydroxymethyl)furan-2(3H)-one

(4R)-4α-(Hydroxymethyl)-3-(6-methylheptanoyl)-4,5-dihydro-2(3H)-furanone

(4R)-4-Hydroxymethyl-3-(6-methyl-1-oxoheptyl)-4,5-dihydrofuran-2(3H)-one