单词 | narceine |
释义 | narceinen. Chemistry. A narcotic tricyclic crystalline alkaloid, C23H27NO8, obtained from opium or narcotine and formerly used as a painkiller. ΚΠ 1833 Rep. Brit. Assoc. Advancem. Sci. 1832 514 List of indifferent vegetable principles... Narceine. 1864 Year-bk. Med. 1863 (New Sydenham Soc.) 430 Codein, narceine and thebaine produce violent and even tetanic spasms. 1875 H. C. Wood Treat. Therapeutics (1879) 229 Decidedly larger doses of narcein than of morphia are required to obtain any action. 1954 Stanek & Manske in R. H. F. Manske & H. L. Holmes Alkaloids IV. xxxii. 181 Both of the gnoscopines were convertible into narceine, indicating that the only differences were stereochemical ones. 1988 European Jrnl. Pharmacol. 145 195 Some structurally related compounds with antitussive properties (narceine, hydrastine, narcotoline and papaverine) were potent competitors. This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022). < n.1833 |
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