Encyclopedia of the Alkaloids: Volume 4 by John Glasby

By John Glasby

Volume four of the Encyclopedia of the Alkaloids covers the literature to the top of 1981 and comprises these compounds which were came upon given that quantity three used to be released in 1977. there's additionally a small variety of entries giving lately made up our minds constitution or addi­ tional information about alkaloids given within the previous 3 volumes. it's a nice excitement to thank the employees of the toilet Rylands technological know-how Library of the Univer­ sity of Manchester for kindly supplying me with entry to the literature in this topic. Woodhouses, JOHN S. GLASBY Manchester, England could, 1982 Contents A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . seventy two zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . seventy nine P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . three hundred F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31O G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358 I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361 J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367 okay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368 L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369 M . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227 Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370 formulation Index. . . . . . . . . . . . . . . . . . . . 371 A ACETYLALLOYOHIMBINE (Alkaloid NRB6) C23H2SN203 M. p. Indefinite I I OAc the basis bark of Rauwolfia nitida yields this yohimbine-type alkaloid which has been ob­ tained as an off-white amorphous powder having no convinced melting aspect. the bottom is lae­ 2 vorotatory with a particular rotation of [aJ5 -89° (c zero. 01, CHCI ) and offers an ultraviolet three spectrum in MeOH with absorption maxima at 225,284 and 290 nm. The constitution has been verified from chemical and spectroscopic research. M. A. Amer, W. E. courtroom, Phytochem. , 20,2569 (1981) 14-ACETYLBROWNINE ___ :(OMe M. p.

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The structure has been elucidated from chemical degradations and spectroscopic analysis. 0 L. , Bull. Soc. Chim. p. , this base occurs in the leaves and root of the plant. It is an amorphous powder having no definite melting point. 0, MeOH), and the structure has been established from chemical correlations and the infrared, ultraviolet, NMR and mass spectra. A. , 1. Pharm. p. Indefinite This indolizidinocarbazole alkaloid occurs in the ethanolic extract of Capuronetta elegans. 73, CHCI 3 ). The structure has been determined from chemical and spectroscopic analysis.

Ancistrocongine forms colourless needles when crystallized from Me2CO and has the structure given above based upon the infrared, NMR and mass spectra. 1. P. , Plant Med. , 9, 87 (1975) ANCISTROCONGOLENSINE OMe OMe OMe 55 A further alkaloid obtained from the roots of Ancistrocladus congolensis, ancistrocongolensine crystallizes as colourless needles from Me2CO. The structure has been established from a study of the infrared, NMR and mass spectra. 1. P. , Plant Med. , 9, 87 (1975) ANCISTROEALAELSINE OMe OMe Sinters at 84°C A third alkaloid isolated from the roots of Ancistrocladus congoiensis, this base forms colourless rods from EtOH and has no definite melting point.

O'Leary, J. Chem. Soc .. 218 (1981) ALKALOID GE-l HO A carboline alkaloid, this base occurs in the extract of Guettarda eximia. The structure has been established from chemical analysis and the infrared, NMR and mass spectra. C. -P. Husson, Chem. Commun .. 618 (1978) ALKALOID GM-l Glycosmis mauritiana yields two alkaloids which have been separated and purified chromatographically. This base has been assigned the above structure on the basis of the infrared, NMR and mass spectra. K. Rastogi. R. S.

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