cupreine Chem.
(ˈkjuːpriːɪn)
[f. cuprea + -ine5.]
A cinchona alkaloid, C19H22N2O2, contained in cuprea bark.
| 1884 Paul & Cownley in Pharm. Jrnl. 20 Sept. 222/1 This latter alkaloid is susceptible of being split into two other alkaloids, one of them being..quinine..the other an alkaloid.. to which we will provisionally give the name of ‘cupreine’. 1886 Encycl. Brit. XX. 185/1 Homoquinine has been shown..to be decomposed on treatment with caustic soda into quinine and a new alkaloid, cupreine. 1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 160/2 Cupreine..occurs together with other cinchona alkaloids..in the so-called ‘Cuprea bark’..which is no longer collected commercially. 1966 McGraw-Hill Encycl. Sci. & Technol. XI. 193/2 The cinchona alkaloids..are quinoline derivatives; in quinine and quinidine, R = CH3O; in cinchonine, R = H; and in cupreine, R = OH. |