Synthetic process improvement of vitamin B6

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Esterification and acylation of oxalic acid, ethanol were synchronized with L-alanine, and EtOAc (EtOAc)5-ethoxy (mouth ugly) azole, final with 2-isopropyl-4, 7-dihydro-1, 3- (mouth) Geng Ying, Diels-Alder reaction, has obtained vitamin B6, total yield54%. This method is low, suitable for industrial production.

all articles:;Aiu003dzgyygy200401001u0026amp;au003dzgyygy200401001

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