Zobrazeno 1 - 10
of 52
pro vyhledávání: '"George B. Elyakov"'
Autor:
M. V. Pivkin, Pavel S. Dmitrenok, Shamil Sh. Afiyatullov, George B. Elyakov, Tatyana A. Kuznetsova, Anatoly I. Kalinovsky, Nina G. Prokof'eva
Publikováno v:
Journal of Natural Products. 67:1047-1051
Four new diterpene glycosides, virescenosides R (1), S (2), T (3), and U (4), have been isolated from a marine strain of Acremonium striatisporum KMM 4401 associated with the holothurian Eupentacta fraudatrix. Their structures have been elucidated on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95b14255a713d7db398eb97694ec7001
https://doi.org/10.1021/np0305324
https://doi.org/10.1021/np0305324
Autor:
V. A. Stonik, George B. Elyakov
Publikováno v:
Russian Chemical Bulletin. 52:1-19
Studies carried out at the Pacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences and at other centers of structural investigation of marine organism metabolites were used as examples to consider some f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2dd9c31561be6add525d74cb1353b75
https://doi.org/10.1023/a:1022433124762
https://doi.org/10.1023/a:1022433124762
Autor:
Victor Ph. Anufriev, Alla Ya. Tchizhova, George B. Elyakov, N. D. Pokhilo, Valery P. Glazunov
Publikováno v:
Tetrahedron. 58:1751-1757
Some substituted monohydroxylated naphthazarins (5,8-dihydroxy-1,4-naphthoquinones) were synthesized and studied by IR-spectroscopy in aprotic organic solvents at ambient temperature. Two narrow stretching mode bands in the high frequency range 3540
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14a138796fb131c6518d57d632391db5
https://doi.org/10.1016/s0040-4020(02)00060-1
https://doi.org/10.1016/s0040-4020(02)00060-1
Autor:
Felix Huth, L. S. Shevchenko, G. K. Oleinikova, Vladimir V. Isakov, Hartmut Laatsch, Tatiana Kuznetsova, George B. Elyakov
Publikováno v:
Russian Chemical Bulletin. 50:2231-2235
A mixture of cyclic lipopeptides with fungicidal activity was extracted from the sea isolate of the bacterium Bacillus subtilis (KMM 457). HPLC separation gave two main individual peptides of this mixture (M = 1030 and 1044 Da). According to amino ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e433e521700617595c6fc70ae910d533
https://doi.org/10.1023/a:1015038410079
https://doi.org/10.1023/a:1015038410079
Publikováno v:
Russian Journal of Bioorganic Chemistry. 26:285-289
A competitive ELISA using the intact toxin as a coating antigen for detecting palytoxin was developed. This immunoassay allows palytoxin (PTX) to be determined in the range of 6–250 ng/ml. In sensitivity, this determination is comparable with RIA b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::903b7725d2fede0ccbb722a46eb15a1b
https://doi.org/10.1007/bf02759168
https://doi.org/10.1007/bf02759168
Publikováno v:
Tetrahedron Letters. 38:5339-5342
Fascaplysin 1, an antimicrobial and cytotoxic red pigment of the marine sponge Fascaplys-inopsis sp., has been synthesized in five steps from tryptamine 2 in 44% overall yield. The key steps in the synthesis are: (a) dehydrogenation of the dihydro-β
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd0dd5942a5a564229977fb05702c383
https://doi.org/10.1016/s0040-4039(97)01167-2
https://doi.org/10.1016/s0040-4039(97)01167-2
Publikováno v:
Tetrahedron Letters. 38:3581-3584
Polycarpine 1 , a highly cytotoxic marine natural product, has been synthesized in three steps from p-methoxyphenacyl bromide 4 in 57% overall yield. The key reaction for construction of the symmetrically substituted disulfide linkage of polycarpine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad82e56506f6fab548d7d1f30ed36191
https://doi.org/10.1016/s0040-4039(97)00668-0
https://doi.org/10.1016/s0040-4039(97)00668-0
Autor:
E. G. Mil'grom, Ya. V. Rashkes, A. I. Wood, R. H. Willis, Yu. M. Mil'grom, C. Carabedian, Nataliya I. Kalinovskaya, George B. Elyakov, Peter T. Murphy, Tatiana Kuznetsova, H. A. Kurtz
Publikováno v:
Russian Chemical Bulletin. 44:951-955
Five cyclic depsipeptides with molecular masses of 1007, 1021, 1021, 1035, and 1035 were obtained fromBacillus pumilus KMM 150 associated with Australian marine spongeIrcinia sp. Their structures were assigned by mass spectrometric techniques (high-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5845c199e071e4c03a800fb4e427256
https://doi.org/10.1007/bf00696935
https://doi.org/10.1007/bf00696935
Autor:
Evgeny V. Evtushenko, Alexandr S. Antonov, A. I. Kalinovskii, George B. Elyakov, Valentin A. Stonik
Publikováno v:
Russian Chemical Bulletin. 43:1265-1269
A new triterpenoid glycoside, (20S,22S,23R,24S)-3β,22,23-trihydroxy-3-O-[O-(β-D-glucuronopyranosyl)-(1→6)-(β-D-glucopyranosyl)]-14-nor-24-methyllanost-8(9)-en-31-oic acid (ulososide A), has been isolated from the sponge Ulosa sp. and characteriz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af208a5c77901ba30bdeced53c833446
https://doi.org/10.1007/bf00698257
https://doi.org/10.1007/bf00698257
Autor:
D. Yu. Popov, M. V. Pivkin, Vladimir A. Denisenko, O. F. Smetanina, T. A. Kuznetzova, S. G. Il\\'in, Yu. V. Khudyakova, Andrey V. Gerasimenko, George B. Elyakov
Publikováno v:
Russian Chemical Bulletin. 50:2463-2465
A pentacyclic tritepenoid, 3β-methoxyolean-18-ene (miliacin), was isolated for the first time from the marine fungus Chaetomium olivaceum. Its structure was determined on the basis of 2D NMR spectroscopy and X-ray diffraction data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::358f5c955f1bd35e2499f62c966a2048
https://doi.org/10.1023/a:1015068520694
https://doi.org/10.1023/a:1015068520694