for the following products
(2R,3S,5S)-3-(Benzyloxy)-5-(6-(benzyloxy)-2-(4-((methoxyphenyl)diphenylmethylamine)-9-h-purin-9-yl)-2-(benzyloxymethyl)cyclopentanol | (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)-diphenylmethyl]amino]-6-(phenylmethoxy)-9H-purin-cyclopentanol and (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(phenylmethoxy)-9H-purin-9-yl]-2-(benzyloxymethyl)cyclopentanol
