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Acid, xviii

Ogul chansky TYu, Losytskyy MYu, Kovalska VB, Lukashov SS, Yashchuk VM, Yarmoluk SM (2001) Interaction of cyanine dyes with nucleic acids. XVIII. Formation of the carbocya-nine dye J-aggregates in nucleic acid grooves. Spectrochim Acta A Mol Biomol Spectrosc 57 2705-2715... [Pg.157]

Maleuric acid (A -carbamoylmaleamic acid, XVIII), when injected into mice bearing Ehrlich ascites tumours, can produce cytoplasmic abnormalities in all phases of mitosis. This acid also inhibits the incorporation of tritiated thymidine into DNA, and prevents the progression of premitotic cells into mitosis [217]. This substance, which is an open-chain analogue of orotic acid, may possibly be an antimetabolic of this pyrimidine or related compounds. [Pg.294]

Another example is the compound prepared by reaction of mono-chloroacetic acid, ammonium thiocyanate and aniline, which has been used for over fifty years under the name of "phenylthiohydantoic acid (XVIII). The anodic wave at pH 4—7 indicates that structure XVIII is not correct (159) and it is assumed that the compound has the structure XIX and is carbamino-thioglycolic acid anilide ... [Pg.67]

Further oxidation of the aldonic acids results in the formation of either 2-keto or 5-keto aldonic acids (XII and XIII). After this step, degradation of the carbon chain apparently occurs. This degradation also occurs normally vdth ketoses (IV), a trihydroxybutyric acid (XVIII) being the main degradation product. [Pg.131]

K19. Kotake, Y., Takebayasbi, H., Matsumura, Y., Takeda, T., and Sakamoto, S., Research on xanthurenic acid. XVIII. Relation between tryptophan metabolism and hyperthyroidism. Ptoc. Japan Acad. 34, 180-183 (1958). [Pg.130]

The problem was resolved essentially by stepwise degradation of the molecule to furan-3-carboxylic acid, pyridine-2,5-dicarboxylic acid (V), nupharidinic acid (XVIII), and anhydronupharanediol, C15H30O (XV), with the structure of the last-named supplying the key to that of deoxynupharidine (15, 16). Chart I show s the main steps of the degradation. [Pg.446]

Oxidation of deoxynupharidine leads to nupharidinic acid (XVIII) which on distillation with soda lime affords 1,7-dimethylquinolizidine (XIX). [Pg.449]

The DL acid (Ilab) and its calcium salt had been prepared by Raske in the course of an investigation on the action of potassium cyanide on chlorinated aldehydes. From 3-chloro-2,3-dideoxy-glycerose (3-chloropro-panal XVII) plus potassium cyanide, 4-chloro-3,4-dideoxy-DL-grl2/cero-te-tronic acid (4-chloro-2-hydroxy-DL-butanoic acid XVIII) was obtained... [Pg.175]

Richardson, C. C.., R. B. Inman, and A. Kornberg. 1964. Enzymic synthesis of deoxyribonucleic acid. XVIII. The repair of partially single-stranded DNA templates by DNA polymerase. J. Molec. Biol., 9 46-69. [Pg.219]

Gymnemic acid XVII, in 0-20034 Gymnemic acid XVIII, in 0-20034... [Pg.615]

The importance of this non-flat structure, thus deduced and implying that the hydrophilic (polar) group is out of the plane of the lipophilic (nonpolar) ring system, was accentuated by the fact that of different other pairs of cis-trans acids, only the cis-form proved to be active [naphthalene-i-acrylic acid (XVIII-XIX), tetralydeneacetic acid (XX XXI), phenyl-cyclopropane-carboxylic acid o (XXII-XXIII)]. [Pg.140]

The hydroxamlc acid XVIII lowered blood pressure and heart rate in renal hypertensive dogs and anesthetized cats. In spinal cats it showed only a pressor action. [Pg.52]

Some of the more abundant transformation products of cholesterol include the group of substances known as the bile acids. The acids which predominate in the bile of man are cholic acid (XVIII), desoxycholic acid (XIX), chenodesoxycholic acid (XX), and lithochoUc acid (XXI). [Pg.363]

That cholic acid originates from blood cholesterol has been demonstrated by feeding cholesterol-D to a dog with a bile-renal fistula followed by the isolation of cholic-D acid from the urine. Comparison of the isotope content of serum cholesterol with cholic acid showed that at least 87 % of the cholic acid was produced from cholesterol. Apparently the reverse conversion, transformation of cholic acid to cholesterol, does not take place. When rabbit liver was perfused with blood containing 7-dehydrocholesterol, desoxycholic acid was isolated from the perfusate. It is of interest to note that scymnol (XXII), a substance very closely related to cholesterol (I) on the one hand and to cholic acid (XVIII) on... [Pg.364]

Takani M, Takahashi K (1985) Usnic acid. XVIII. The Photolysis of Usnic Acid and its Derivatives (1). Chem Pharm Bull 33 2772... [Pg.272]

See other pages where Acid, xviii is mentioned: [Pg.509]    [Pg.509]    [Pg.509]    [Pg.15]    [Pg.131]    [Pg.148]    [Pg.334]    [Pg.335]    [Pg.63]    [Pg.370]    [Pg.8]    [Pg.740]    [Pg.448]    [Pg.370]    [Pg.508]    [Pg.41]    [Pg.221]    [Pg.57]    [Pg.15]    [Pg.41]    [Pg.101]    [Pg.319]    [Pg.82]    [Pg.461]    [Pg.170]    [Pg.407]    [Pg.679]    [Pg.514]   
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