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(R)-4-oxopyrrolidine-2-carboxylic acid

(S)-4-oxopyrrolidine-2-carboxylic acid hydrochloride

(1S,3r)-3-aminocyclohexanol

(1R,3s)-3-aminocyclohexanol

Ethyl 3-chloro-4-formylbenzoate

2-Chloro-4-(ethoxycarbonyl)benzoic acid

Methyl 3-chloro-4-formylbenzoate

2-Chloro-4-(methoxycarbonyl)benzoic acid

Methyl imidazo[1,2-a]pyridine-8-carboxylate

1-Butyl-3,5-difluorobenzene