منابع مشابه
Converting disulfide bridges in native peptides to stable methylene thioacetals.
Disulfide bridges play a crucial role in defining and rigidifying the three-dimensional structure of peptides. However, disulfides are inherently unstable in reducing environments. Consequently, the development of strategies aiming to circumvent these deficiencies - ideally with little structural disturbance - are highly sought after. Herein, we report a simple protocol converting the disulfide...
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Ionization of a molecule can greatly alter its electronic structure as well as its geometric structure. In this collaborative experimental and theoretical study, we examined variance in hyperconjugation upon ionization of diethyl ether (DEE) and diethyl sulfide (DES). We obtained the experimental gas phase vibrational spectra of DEE, DES, DEE(+), DES(+), DEE(+)-Ar, and DES(+)-Ar in the wavenumb...
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amblyopia: a comprehensive survey of outcome. Eye 1992; 6: 300-4. 7 Lithander J, Sjorstrand J. Anisometropic and strabismic amblyopia in the age group 2 years and above: a prospective study of the results of treatment. retinoscopy by used to screen infants for amblyopia? A longitudinal study of refraction in the first year of life. Polymegathism is a term used to describe increased variability ...
متن کاملThe aldose reductase controversy.
ext to the debate as to whether chronic hyperglycemia is the primary cause of the late vascular complications of diabetes, the longest running controversy among researchers and clinicians studying this disease is the role of the sorbitol pathway, particularly its initial enzymatic step, the reduction of glucose to sorbitol by aldose reductase in the pathogenesis of these complications. Because ...
متن کاملDiethyl pyrazine-2,5-dicarboxylate
The mol-ecule of the title compound, C(10)H(12)N(2)O(4), is located around an inversion center. The carboxyl-ate groups are twisted slightly with respect to the pyrazine ring, making a dihedral angle of 2.76 (19)°. In the crystal, mol-ecules are stacked along the c axis via weak C-H⋯O hydrogen bonds.
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1965
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v65-278