Thiamine Anhydride. II
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چکیده
منابع مشابه
Oxidation Product of Thiamine Anhydride and the Metabolite of Thiamine Anhydride in Rats.
As shown in the previous paper, a metabolite of thiamine anhydride (TA) (I) was isolated as crystals melting at 172-173•‹ from the urine when TA was given parenterally to rats and it was assumed to be thiamine anhydride sulfoxide (TAO) (II) from its analytical data. It is known, however, that TA can be oxidized to TA sulfone (III) besides its sulfoxide by hydrogen peroxide according to the con ...
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The difructose anhydrides include four welldefined crystalline sugars. Diheterolevulosan was first prepared by Pictet and Chavan [1]l by the action of concentrated hydrochloric acid on fructose at 0° C. This sugar is a difructopyranose in which carbon atoms 1 and 2 of each fructose residue are joined to form a dioxane ring. The other members [2,3] of this group arc designated difructose anhydri...
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HOFF-JORGENSEN, E. AND HANSEN, B. 1955 A microbiological assay of vitamin B1. Acta Chem. Scand., 9, 562-566. JONES, A. AND MORRIS, S. 1949 The use of the plate method for the assay of aneurine in yeast and yeast products. Analyst, 74, 333-339. LEES, K. A. AND TOOTILL, J. P. R. 1955 Microbiological assay on large plates. Analyst, 80, 95-110. MACIASR, F. M. 1957 Improved medium for assay of thiam...
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The growth of a thiamine pyrophosphate auxotroph of Escherichi coli was inhibited by either thiamine or thiamine monophosphate, and the growth of a thiamine monophosphate auxotroph was inhibited by thiamine. The thiamine pyrophosphate-dependent oxidation of pyruvate was inhibited by thiamine with whole cells of the thiamine pyrophosphate auxotroph but not with cell extracts prepared from the sa...
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The asymmetric unit of the title compound, C(12)H(12)O(5)P(2), contains four independent mol-ecules, generating two dimers via pairs of inter-molecular O-H⋯O hydrogen bonds, forming R(2) (2)(8) rings. The two aryl rings of each mol-ecule form dihedral angles of 108.6 (1), 103.2 (1), 12.5 (2) and 8.1 (2)° in the four mol-ecules.
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1958
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.78.10_1160