181638-40-4

Upstream product

• 181638-38-0 [4S-4α,8α]-1,6-dioxo-8-methyl-4-phenyl-1,3,4,6,7,8-hexahydropyrido[2,1-c][1,4]oxazine-9-carboxylic acid methyl ester 
• 163191-45-5 [(S)-2-Oxo-5-phenyl-morpholin-(3Z)-ylidene]-acetic acid methyl ester 
• 762-42-5 dimethyl acetylenedicarboxylate 
• 20989-17-7 (2S)-2-phenylglycinol 
• 181638-39-1 [4S-4α,8α,9α,9aα]-1,6-dioxo-8-methyl-4-phenyloctahydropyrido[2,1-c][1,4]oxazine-9-carboxylic acid methyl ester 

Relevant academic research and scientific papers

Enantioselective synthesis of conformationally restricted analogs of NMDA: cis- and trans-Piperidine-2,3-dicarboxylic acids and methylated derivatives

Various enantiopure stereoisomeric cyclic amino diacids belonging to the 2,3-piperidinedicarboxylic acid series were obtained via an aza-annulation reaction between enamino esters and acryloyl, methacryloyl, or crotonyl chloride. Enantioselective synthese