P.M.R. spectroscopy of O-methyl derivatives of d-galactopyranose and related compounds in solution in deuterium oxide

1972 ◽  
Vol 23 (2) ◽  
pp. 275-282 ◽  
Author(s):  
E.B. Rathbone ◽  
A.M. Stephen ◽  
K.G.R. Pachler
Keyword(s):  
Deuterium Oxide ◽  
Methyl Derivatives ◽  
Derivatives Of ◽  
Related Compounds

scholarly journals The use of deoxyfluoro-d-glucopyranoses and related compounds in a study of yeast hexokinase specificity

1972 ◽  
Vol 128 (2) ◽  
pp. 199-204 ◽  
Author(s):  
E. M. Bessell ◽  
A. B. Foster ◽  
J. H. Westwood
Keyword(s):  
Chemical Modification ◽  
Substrate Binding ◽  
Hexokinase 2 ◽  
Substantial Loss ◽  
Methyl Derivatives ◽  
Derivatives Of ◽  
Related Compounds ◽  
Yeast Hexokinase

1. 2-Deoxy-2-fluoro-d-glucose, 2-deoxy-2-fluoro-d-mannose and 2-deoxy-2,2-difluoro-d-arabino-hexose are good substrates for yeast hexokinase. 2. 3-Deoxy-3-fluoro-d-glucose and 4-deoxy-4-fluoro-d-glucose are poor substrates and have very similar Km values (8×10−2m). 3. Neither α- nor β-d-glucopyranosyl fluoride is a substrate or inhibitor. 4. Studies with 2-chloro-2-deoxy- and 2-O-methyl derivatives of d-glucose and d-mannose have revealed that little chemical modification is possible at position 2 without substantial loss in substrate binding. 5. The variation in the value of Km for the d-hexose derivatives was associated with a corresponding change in the value of Km for MgATP2− showing that the binding of MgATP2− is modified by the binding of the sugar.

Synthesis of the 3-methyl and 4-methyl derivatives of 3-amino-3,4-dihydro-1-hydroxycarbostyril and related compounds

1980 ◽  
Vol 17 (7) ◽  
pp. 1405-1408 ◽  
Author(s):  
Alvie L. Davis ◽  
David L. Tabb ◽  
Janet K. Swan ◽  
Tommy J. Mccord
Keyword(s):  
Methyl Derivatives ◽  
Derivatives Of ◽  
Related Compounds

The infrared absorption spectra of thiosemicarbazide and related compounds: NH2 and NH vibrations

1969 ◽  
Vol 47 (6) ◽  
pp. 1087-1089 ◽  
Author(s):  
D. M. Wiles ◽  
T. Suprunchuk
Keyword(s):  
Absorption Spectra ◽  
Infrared Absorption ◽  
Significant Contribution ◽  
Methyl Derivatives ◽  
Infrared Absorption Spectra ◽  
Derivatives Of ◽  
Related Compounds

In the infrared absorption spectra of thiosemicarbazide (I), aldehyde thiosemicarbazones (II), and N-methyl derivatives of these compounds, the following assignments are proposed: νa(NdH2) absorbs in the vicinity of 3400 cm−1; NaH2 vibrations are observed in the region of 1630 cm−1; there is a significant contribution from ν(NbH) at or near 3170 cm−1. These conclusions probably apply to other thioamides and amides having related structures.

Physical Properties of TCNQ Salts with N-Methyl Derivatives of Pyridine

1982 ◽  
Vol 85 (1) ◽  
pp. 257-263 ◽  
Author(s):  
A. Graja ◽  
M. Przybylski ◽  
B. Butka ◽  
R. Swietlik
Keyword(s):  
Physical Properties ◽  
Methyl Derivatives ◽  
Derivatives Of
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