(2S,3R)-3-((R)-1-Formyl-2-hydroxy-ethoxy)-2-[(4-methoxy-phenyl)-diphenyl-methoxy]-3-(2-{[(4-methoxy-phenyl)-diphenyl-methyl]-amino}-6-oxo-1,6-dihydro-purin-9-yl)-propionaldehyde 在
sodium tetrahydroborate 作用下,
以
1,4-二氧六环 、
水 为溶剂,
生成 9-{(1R,2R)-3-Hydroxy-1-(2-hydroxy-1-hydroxymethyl-ethoxy)-2-[(4-methoxy-phenyl)-diphenyl-methoxy]-propyl}-2-{[(4-methoxy-phenyl)-diphenyl-methyl]-amino}-1,9-dihydro-purin-6-one