(3S,4R,4aR,6S,6aS,12aR,12bS)-4,6a,12b-trimethyl-11,12-dioxo-4-((propionyloxy)methyl)-9-(pyridin-2-yl)-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-2H,11H-benzo[f]pyrano[4,3-b]chromene-3,6-diyl dipropionate 在
sodium tetrahydroborate 、
乙醇 、 cerium(III) chloride heptahydrate 作用下,
反应 6.0h,
以5 mg的产率得到(3S,4R,4aR,6S,6aS,12R,12aS,12bS)-12-hydroxy-4,6a,12b-trimethyl-11-oxo-4-((propionyloxy)methyl)-9-(pyridin-2-yl)-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-2H,11H-benzo[f]pyrano[4,3-b]chromene-3,6-diyl dipropionate