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9-Propenyladenine 2-(6-Aminopurin-9-yl)ethanol toluene-4-sulfonic acid 3-Methanesulfonyl-propyl ester PROPYL P-TOLUENESULFONATE HEXAFLUOROISOPROPYL TOSYLATE 1,6-ANHYDRO-3,4-O-ISOPROPYLIDENE-2-TOSYL-B-D-GALACTOPYRANOSE P-TOLUENESULFONIC ACID 1-BUTYN-3-YL ESTER 5-O-CARBOMETHOXY-1,2-O-ISO-PROPYLIDENE-3-O-(P-TOLYL-SULFONYL)-ALPHA-D-XYLOFURANOSE