葡庚糖酸内酯

5-O-methyl-2,4-O-(1-methylethylidene)-L-glucuronic acid γ-lactone

2-O-methyl-3,5-O-(1-methylethylidene)-D-glycero-D-gulo-heptonic acid γ-lactone

(3S,6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-hydroxy-2H-azepin-2-one

(3S,6S)-3-(tert-butyloxycarbonyl)aminohexahydro-6-(4-nitrophenylcarbonyl)oxy-2H-azepin-2-one