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Pteridine skeleton

Pterins — These are pigments derived from pteridine skeletons. All natural pterins are 2-amino-4-hydroxypteridines bearing various substituents at Cg and C7 and having different oxidation states of N5 and Ng. [Pg.107]

A novel method to introduce carbon substituents into the pteridine skeleton has been described <99H117>. Tlie Wittig reaction has been applied to 6-formylpterin and 6-formyl-... [Pg.308]

The pteridine skeleton is constructed between a pyrimidine and a pyrazine moiety, which has been described in the preceding section. Some compounds that possess this skeleton include folic acid, which is known as an... [Pg.206]

Pterin coenzymes such as folic acid (pteroylglutamic acid) and biopterin, which contain a dicyclic pteridine ring, a part of the skeleton of flavins, are also known to play versatile roles in biological redox reactions [67]. The oxidizing ability of the excited state of a pteridine derivative (lumazine [Lu])... [Pg.121]

See other pages where Pteridine skeleton is mentioned: [Pg.206]    [Pg.206]    [Pg.36]    [Pg.158]    [Pg.738]    [Pg.36]    [Pg.72]    [Pg.396]    [Pg.250]    [Pg.687]    [Pg.195]   
See also in sourсe #XX -- [ Pg.206 , Pg.207 ]



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