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Structure of a 7α-methoxy-1-oxacephem: dichloromethane solvated (−)-(6R,7R)-7-{2-[(difluoromethyl)thio]acetamido}-3-({[1-(2-hydroxyethyl)-1H-tetrazol-5-yl]thio}methyl)-7-methoxy-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

✍ Scribed by Nakai, H. ;Takasuka, M. ;Ide, Y. ;Hamada, Y. ;Shiro, M.

Book ID
114504443
Publisher
International Union of Crystallography
Year
1987
Tongue
English
Weight
330 KB
Volume
43
Category
Article
ISSN
0108-2701

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Pseudopolymorphism and phase stability i
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0 (6R,7R)-7-[2-(5-Amir1o-l,2,4-thiadiazol9-yl)-(Z)-2-methoxyiminoacetamid]-3-[(4-carbamoyl-1 -quinuclidinio)methylJ-8-oxo-5thia-1 -azabicyclo [4,2,0]oct-2-ene-2-carboxylate (1 ; E l 040) was isolated as a-(decahydralte), p-(pentahydrate), and yform (anhydrate) crystals and the X-ray amorphous form.