Preparative HPLC purification of a methanol extract of the aerial parts of Glechoma hederaceae has yielded two unique alkaloids, hederacine A (1) and hederacine B (2). The structures of these compounds were established unequivocally by UV, IR, MS and a series of 1D and 2D NMR analyses. These alkaloi
β¦ LIBER β¦
Isolation, structure and biological activity of two cholecystokinin octapeptides from sheep brain
β Scribed by DOCKRAY, G. J.; GREGORY, R. A.; HUTCHISON, J. B.; IEUAN HARRIS, J.; RUNSWICK, M. J.
- Book ID
- 109710440
- Publisher
- Nature Publishing Group
- Year
- 1978
- Tongue
- English
- Weight
- 365 KB
- Volume
- 274
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/274711a0
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## Abstract In the course of study of epiphytic microorganisms occurring on the surface of roots of __Taxus baccata__ L. a new strain __Streptomyces__ sp. AC113 was isolated. According to 16S ribosomal DNAβbased identification the new strain is 99% identical with __Streptomyces flavidofuscus__. Thi