Citation:
Yu Chuan Li, Si Ping Pang, Yong Zhong Yu. Studies on the cyclization reaction of D-aspartic acid[J]. Chinese Chemical Letters,
;2007, 18(5): 516-518.
doi:
10.1016/j.cclet.2007.03.013
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The cyclization reaction of D-aspartic acid was studied, the carboxyl groups of D-aspartic acid were protected by benzyl alcohol to give compound D-dibenzyl aspartate. Then (4R)-benzyl azetidine-2-one-4-carboxylate and meso-3, 6-disubstituted piperazine2, 5-diones were synthesized via intramolecular cyclization and intermolecular cyclization of D-dibenzyl aspartate, respectively, and their structures were confirmed by 1H NMR and MS. Both cyclization reaction conditions were also investigated in detail.
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