单词 | quinicine |
释义 | quinicinen. Chemistry. A reddish-yellow amorphous isomer of quinine and quinidine, which can be obtained from either of these alkaloids by heating.Formula: C20H24O2N2. ΚΠ 1854 L. Pasteur in Pharm. Jrnl. & Trans. 13 374 When any salt of this base [sc. quinine] is heated, a new alkaloid is formed, isomeric with it... To the new base I give the name of quinicine. 1878 Harper's Mag. Jan. 313/1 Fluorescent rays do chemical work within the substance, transforming quinine, for example, into quinicine. 1913 T. A. Henry Plant Alkaloids iv. 167 Cinchonicine and quinicine, unlike their generators, are keto-bases and contain one secondary nitrogen atom. 1966 G. E. Trease et al. Text-bk. Pharmacognosy (ed. 9) xxxiii. 624 A large number of alkaloids of lesser importance have been isolated [from cinchona bark]. Some of these, e.g. quinicine and cinchonicine, are amorphous. 1997 Phytochemistry 46 973 (title) Quinine- and quinicine-derived alkaloids from Guettarda noumeana. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1854 |
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