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A	B	C	D	E	F
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M	N	O	P	Q	R
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Y	Z

2,3-Norbornanedicarboxylic acid

2,3-O-(3-pentylidene)-d-glyceraldehyde

2,3-O-carbonyl-alpha-d-mannopyranose

2,3-O-cyclohexylidene-l(-)-erythruronolactone

2,3-O-isopropylidene-1-o-methyl-d-ribosic acid

2,3-O-isopropylidene-alpha,beta-d-ribofuranose

2,3-O-isopropylidene-d-erythronolactone

2,3-O-isopropylidene-d-erythrose

2,3-O-isopropylidene-d-ribofuranose

2,3-Piperazinedicarboxylicacid(6ci,7ci,9ci)

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