对甲苯磺酰氯 、
N-(9-{(R)-2-[Bis-(4-methoxy-phenyl)-phenyl-methoxy]-1-hydroxymethyl-ethoxymethyl}-6-oxo-6,9-dihydro-1H-purin-2-yl)-isobutyramide 生成 Toluene-4-sulfonic acid (S)-3-[bis-(4-methoxy-phenyl)-phenyl-methoxy]-2-(2-isobutyrylamino-6-oxo-1,6-dihydro-purin-9-ylmethoxy)-propyl ester