| 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). <  | 
	
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