英语词汇“isoalloxazine”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

isoalloxazine n.

Brit.

/ˌʌɪsəʊəˈlɒksəziːn/

U.S.

/ˌaɪsoʊəˈlɑksəˌzin/

[allox- (in alloxan n.) + azine n.] the hypothetical tricyclic parent compound, C₁₀H₆N₄O₂, of the flavins, which has a structure formed of fused benzene, pyrazine, and pyrimidine nuclei and is known only as substituted derivatives.

ΘΚΠ

the world > matter > chemistry > organic chemistry > azines > [noun]

azine1887

isoalloxazine1936

1936 Chem. Abstr. 30 4512 Isoalloxazines with a substituent, e.g., alkyl, cycloalkyl or aryl, in the 9-position are prepd. by condensing N-monosubstituted aromatic o-diamines with alloxan.

1953 J. S. Fruton & S. Simmonds Gen. Biochem. xiii. 320 In riboflavin, a sugar residue d-ribitol, is attached to a nitrogen atom of a heterocyclic nucleus, termed an isoalloxazine ring.

1968 I. L. Finar Org. Chem. (ed. 4) II. 556 It appears that isoalloxazine, the tautomer of alloxazine, does not exist as such; only when the hydrogen atom is substituted is the isoalloxazine form retained.

单词	isoalloxazine
释义	> as lemmas isoalloxazine isoalloxazine n. Brit. /ˌʌɪsəʊəˈlɒksəziːn/ , U.S. /ˌaɪsoʊəˈlɑksəˌzin/ [allox- (in alloxan n.) + azine n.] the hypothetical tricyclic parent compound, C₁₀H₆N₄O₂, of the flavins, which has a structure formed of fused benzene, pyrazine, and pyrimidine nuclei and is known only as substituted derivatives. ΘΚΠ the world > matter > chemistry > organic chemistry > azines > [noun] azine1887 isoalloxazine1936 1936 Chem. Abstr. 30 4512 Isoalloxazines with a substituent, e.g., alkyl, cycloalkyl or aryl, in the 9-position are prepd. by condensing N-monosubstituted aromatic o-diamines with alloxan. 1953 J. S. Fruton & S. Simmonds Gen. Biochem. xiii. 320 In riboflavin, a sugar residue d-ribitol, is attached to a nitrogen atom of a heterocyclic nucleus, termed an isoalloxazine ring. 1968 I. L. Finar Org. Chem. (ed. 4) II. 556 It appears that isoalloxazine, the tautomer of alloxazine, does not exist as such; only when the hydrogen atom is substituted is the isoalloxazine form retained. extracted from iso-comb. form < as lemmas
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> as lemmas