氧基乙酰氯 、
(+/-)-trans-3,4-dihydroxy-1,2,3,4-tetrahydrobenzanthracene 在
吡啶 作用下,
以35.8%的产率得到((1R,2S,5R)-2-Isopropyl-5-methyl-cyclohexyloxy)-acetic acid (3R,4R)-3-[2-((1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyloxy)-acetoxy]-1,2,3,4-tetrahydro-benzo[a]anthracen-4-yl ester