Zobrazeno 1 - 10
of 92
pro vyhledávání: '"I F, Makarevich"'
Autor:
Yu. I. Gubin, I. F. Makarevich
Publikováno v:
Chemistry of Natural Compounds. 46:756-759
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59624c1ac1989565ff9ebb2cdf2bbb58
https://doi.org/10.1007/s10600-010-9733-z
https://doi.org/10.1007/s10600-010-9733-z
Publikováno v:
Chemistry of Natural Compounds. 46:742-745
Stereochemical structural transformations of cardiosteroids to create in them additional lactone rings were studied. Creation of δ-lactones by reaction of a 3β-OH group and a 19-carboxylic group to give the corresponding A/B-trans cardiosteroids an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28ad228cfc40d9c464d8ca5ba95adfd3
https://doi.org/10.1007/s10600-010-9730-2
https://doi.org/10.1007/s10600-010-9730-2
Publikováno v:
Chemistry of Natural Compounds. 45:40-44
Twelve compounds including secologanin, loganin, the aglycon of loganin, and a new iridoid called glucologanin were isolated from fruit of common snowberry Symphoricarpos albus (L.) Blake. The structure of glucologanin was confirmed using PMR and mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c866c6aecb8f4c7b1b9b2c2afa74f0c
https://doi.org/10.1007/s10600-009-9257-6
https://doi.org/10.1007/s10600-009-9257-6
Autor:
S. V. Kovalev, I. F. Makarevich
Publikováno v:
Chemistry of Natural Compounds. 43:93-96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75a021a1e8cb40fb6524eb02f2daf336
https://doi.org/10.1007/s10600-007-0040-2
https://doi.org/10.1007/s10600-007-0040-2
Autor:
Yu. I. Gubin, I. F. Makarevich
Publikováno v:
Chemistry of Natural Compounds. 42:473-476
New biologically active quaternary salts of the alkaloids ajmaline, quinine, hyoscyamine, codeine, and strychnine were synthesized. So-called separable conformers were observed among the ajmaline derivatives.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::859eb0b0feab6b0a9d9b9477a8de79a8
https://doi.org/10.1007/s10600-006-0183-6
https://doi.org/10.1007/s10600-006-0183-6
Autor:
S. V. Kovalev, I. F. Makarevich
Publikováno v:
Chemistry of Natural Compounds. 42:189-193
Twelve cardiac glycosides and aglycons were isolated from Strophanthus kombe seeds. Of these, eight were identified as cymarin, K-strophanthin-β, K-strophanthoside, periplocymarin, 17α-strophadogenin, erysimin (= helveticoside), erysimoside, and ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1c0ed39afddc7b72d44f6b045a9b418
https://doi.org/10.1007/s10600-006-0075-9
https://doi.org/10.1007/s10600-006-0075-9
Publikováno v:
Chemistry of Natural Compounds. 41:332-335
New aldimines were synthesized from the cardenolide strophantidin and cardenolide-glycosides erysimin and cymarin and included morpholine, nitrile, pyridine, furan, hydroxy- and methoxyphenyl, piperidine, and other derivatives. An effective modified
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e14937032ed0a1d51b225357706025e1
https://doi.org/10.1007/s10600-005-0142-7
https://doi.org/10.1007/s10600-005-0142-7
Publikováno v:
Chemistry of Natural Compounds. 41:52-55
3-Keto-derivatives of the cardenolides digitoxigenin and cardiogenin were prepared with subsequent conversion to new ketoimines (1–19, 24–44), the oxime (23), and for the first time to pure cardiogenin (14,16-dianhydrogitoxigenin, 20), its acetat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9765f3948df8bf1279453da4c8356895
https://doi.org/10.1007/s10600-005-0073-3
https://doi.org/10.1007/s10600-005-0073-3
Publikováno v:
Chemistry of Natural Compounds. 45:653-655
Substitution of the angular aldehyde by halogen in cardiosteroids in two steps was studied. The first step was oxidation of the aldehyde and production of the cooresponding 19-carboxylic acids; the second, decarboxylation of the 19-carboxylic acids u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4379d96b96737b563bdc4cd0ba7cb3c8
https://doi.org/10.1007/s10600-009-9440-9
https://doi.org/10.1007/s10600-009-9440-9
Autor:
I. F. Makarevich, A. V. Ulesov
Publikováno v:
Chemistry of Natural Compounds. 44:463-465
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4e5e350ccbc6aa7cd95d289c96b78af
https://doi.org/10.1007/s10600-008-9097-9
https://doi.org/10.1007/s10600-008-9097-9