✦ LIBER ✦
Studies on orchidaceae alkaloids VII Structure of a glucosidic alkaloid from Malaxis congesta comb. nov. (Rchb. f.)
✍ Scribed by Kurt Leander; Björn Lüning
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- French
- Weight
- 110 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Most of the species of the subfamily Liparidinae have been shown to contain alkaloids (Z-5). From Malaxis congesta comb. nov. (Rchb. f.) we have isolated a crystalline alkaloid for which we propose the name malaxin (I); m. p. 151-159°, LO! IF -31' (c_ 2.7. ethanol). Malaxin was shown by elemental analysis and high resolution mass spectrometry to have the empirical formula C26H37N08. The UV spectrum (imax ethano1 209 mc(, e20000; 254 rnp, a 17000) and the IR absorption at 1710 cm -' suggest that the alkaloid is an aromatic ester. Hydrolysis with aqueous alkali