| 释义 |
ribitol Chem.|ˈraɪbɪtɒl, ˈrɪbɪtɒl|
[f. ribose + -itol.]
A colourless crystalline pentahydric alcohol, HOCH2·(CHOH)3·CH2OH, which is obtained by reduction of ribose and occurs in the leaves of pheasant's eye, Adonis vernalis; also known as adonitol.
1946Adv. Carbohydrate Chem. II. 117 Upon recrystallization from ethanol the melting point and mixed melting point with an authentic sample of ribitol was 101·5–102°. 1948Jrnl. Amer. Chem. Soc. LXX. 2809/1 All of the acetates of the pentitols have been described in crystalline form save that of ribitol (synonym, adonitol). 1954[see pentitol]. 1968A. White et al. Princ. Biochem. (ed. 4) xli. 913 When ribitol is present, the sugar substituent appears always to be linked to the 2-position of this alditol. 1970R. W. McGilvery Biochem. x. 188 Ribitol is the alcohol corresponding to ribose rather than the sugar itself, so riboflavin is not a nucleoside.
Hence ˈribityl [-yl], the univalent radical derived from ribitol by the loss of a terminal hydroxyl group.
1946Jrnl. Org. Chem. XI. 83 Hydrogenation of these triacyl arylamine ribosides yields triacyl ribityl amines. 1970R. W. McGilvery Biochem. x. 189 The ribityl group is a part of the flavin, not something extra. |