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X-ray structural studies and physicochemical characterization of (E)-6-(3,4-dimethoxyphenyl)-1-ethyl-4-mesitylimino-3-methyl-3,4-dihydro-2(1H)-pyrimidinone polymorphs

✍ Scribed by Akira Miyamae; Satoshi Kitamura; Toshiji Tada; Shigetaka Koda; Tsutomu Yasuda


Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
673 KB
Volume
80
Category
Article
ISSN
0022-3549

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## Abstract magnified image A series of chiral, nonracemic oxadiazines have been prepared from (1__R__,2__S__)‐ephedrine, (1__R__,2__S__)‐norephedrine, and L‐phenylalaninol. The synthesis of the __Ephedra__‐based oxadiazines was accomplished by a process of __N__‐nitrosation, reduction, acylation,

Synthesis and X-Ray Diffraction Studies