Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Angela P. Borisova"'
Chemo- and regioselective modification of D,L-phenylalanine with α-cyanoacetylenic alcohols in water
Autor:
Anastasiya G. Mal’kina, Angela P. Borisova, Valentina V. Nosyreva, Olesya A. Shemyakina, Alexander I. Albanov, Boris A. Trofimov
Publikováno v:
ARKIVOC, Vol 2011, Iss 9, Pp 281-288 (2011)
Externí odkaz:
https://doaj.org/article/8e7e7406db324ad7a1d769faa60d605e
Autor:
Tatarinova Anna A, A. I. Albanov, Valentina V. Nosyreva, Olesya A. Shemyakina, Boris A. Trofimov, Anastasiya G. Mal'kina, Angela P. Borisova
Publikováno v:
Russian Chemical Bulletin. 62:2538-2543
l-Histidine chemo- and regioselectively reacts with tertiary cyanopropargylic alcohols (4,4-di-alkyl-4-hydroxybut-2-ynenitriles) under mild conditions (water, 6.4 wt.% NaOH, 5—15 °C, 72—175 h) with the formation of new “unnatural” amino acid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6ca10c38b27662cae19fe20f0dd4903
https://doi.org/10.1007/s11172-013-0367-8
https://doi.org/10.1007/s11172-013-0367-8
Autor:
Vladimir A. Shagun, Anastasiya G. Mal'kina, Valentina V. Nosyreva, Vladimir I. Smirnov, Angela P. Borisova, Lidiya M. Sinegovskaya, Olesya A. Shemyakina
Publikováno v:
Russian Chemical Bulletin. 60:2451-2456
The sequence of isomeric transformations of intermediate adducts formed upon nuceleophilic addition of β-phenyl-α-alanine to 4-hydroxy-4-methylpent-2-ynenitrile affording a neutral or two alternative zwitterionic forms (with protonated imino or ami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faf2914061fefa6105cdfd3824528068
https://doi.org/10.1007/s11172-011-0380-8
https://doi.org/10.1007/s11172-011-0380-8
Chemo- and regioselective modification of D,L-phenylalanine with α-cyanoacetylenic alcohols in water
Autor:
Angela P. Borisova, Olesya A. Shemyakina, Alexander I. Albanov, Anastasiya G. Mal'kina, Valentina V. Nosyreva, Boris A. Trofimov
Publikováno v:
ARKIVOC, Vol 2011, Iss 9, Pp 281-288 (2011)
D,L-Phenylalanine reacts with -cyanoacetylenic alcohols under biomimetic conditions (room temperature, water) to give a novel family of unnatural amino acids, containing 2,5-dihydro-5iminofuranyl substituents in the amino group, in almost quantita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86f7a2583554377b675e0a04ca1c237e
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0012.921
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0012.921
Autor:
Boris A. Trofimov, Angela P. Borisova, Anastasiya G. Mal'kina, Olesya A. Shemyakina, Valentina V. Nosyreva, Alexander I. Albanov
Publikováno v:
Synthesis. 2010:3174-3178
D,L-Tryptophan reacts with α,β-acetylenic γ-hydroxy nitriles, chemo- and regiospecifically, under mild, green conditions via a hydroamination-type process involving the primary amine group. The hydroxycyanopropanyl substituent of the initial adduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8c7cd4ee3770afb485aa8c8d4fef7e5
https://doi.org/10.1055/s-0030-1257912
https://doi.org/10.1055/s-0030-1257912
Autor:
Grigorii G. Alexandrov, Olesya A. Shemyakina, Angela P. Borisova, Oleg A. Dyachenko, Lyudmila I. Larina, Valentina V. Nosyreva, Anastasiya G. Mal'kina, Boris A. Trofimov, Olga N. Kazheva
Publikováno v:
Tetrahedron. 66:1699-1705
Adenine (9H-purin-6-amine) adds readily to available α,β-acetylenic γ-hydroxy nitriles under mild conditions (molar ratio 1:1, K2CO3, DMF, rt, 10 min) to afford chemo-, regio- and stereospecifically (Z)-3-(6-amino-9H-purin-9-yl)-4-hydroxy-4-alkyl-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::984348eafbc4e499ed0715bf39f7e1eb
https://doi.org/10.1016/j.tet.2010.01.015
https://doi.org/10.1016/j.tet.2010.01.015
Autor:
Leonid B. Krivdin, Valentina V. Nosyreva, Anastasiya G. Mal'kina, Boris A. Trofimov, Olesya A. Shemyakina, Spartak S. Khutsishvili, Angela P. Borisova
Publikováno v:
Synthesis. 2009:3136-3142
A novel families of nonconventionally functionalized amino acids have been synthesized in almost quantitative yields by chemo-, regio- and stereospecific addition of L -cysteine and L -methionine to electron-deficient functionalized acetylenes (cyano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bccdaabd7825ce590505d84085f9b4d
https://doi.org/10.1055/s-0029-1217602
https://doi.org/10.1055/s-0029-1217602
Autor:
Angela P. Borisova, Anastasiya G. Mal'kina, Alexander I. Albanov, Grigorii G. Alexandrov, Boris A. Trofimov, Olesya A. Shemyakina, Valentina V. Nosyreva, Oleg A. Dyachenko, A. N. Chekhlov, Olga N. Kazheva
Publikováno v:
Tetrahedron. 65:2472-2477
2-Aminobenzoic acid 1 reacts with α,β-acetylenic γ-hydroxy nitriles 4 and 5 to afford 2-[(5-iminio-2,2-dialkyl-2,5-dihydro-3-furanyl)amino]benzenecarboxylates 7 and 8 (yield 73–74%), a new class of unnatural amino acids in a peculiar zwitterioni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7224e3c4d989ed10a32a066a77acccdd
https://doi.org/10.1016/j.tet.2009.01.073
https://doi.org/10.1016/j.tet.2009.01.073
Autor:
Olesya A. Shemyakina, Angela P. Borisova, Valentina V. Nosyreva, Boris A. Trofimov, Gennadii V. Shilov, Oleg A. Dyachenko, Anastasiya G. Mal'kina, Olga N. Kazheva
Publikováno v:
Tetrahedron Letters. 49:3104-3107
The reaction of α,β-acetylenic γ-hydroxy nitriles with thiosemicarbazide, under mild conditions (rt, no catalyst, in 1:1 aqueous ethanol, 4–14 h), proceeds chemo-, regio- and stereoselectively to give atypically so far inaccessible tri-functiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a961c41625335979510d4b67c188edb4
https://doi.org/10.1016/j.tetlet.2008.03.046
https://doi.org/10.1016/j.tetlet.2008.03.046
Autor:
Grigorii G. Alexandrov, Boris A. Trofimov, Olesya A. Shemyakina, Valentina V. Nosyreva, Anastasiya G. Mal'kina, Oleg A. Dyachenko, Angela P. Borisova, Olga N. Kazheva
Publikováno v:
Mendeleev Communications. 18:278-280
Isonicotinic acid is readily added to α,β-acetylenic γ-hydroxy nitriles through its nitrogen atom under mild non-catalytic conditions in water (50–55 °C, 45–50 h) to afford chemo-, regio- and stereospecifically 1-[(Z)-2-cyano-1-(1-hydroxy-1-a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8af2996dbb948a38dd495cc0715c99b0
https://doi.org/10.1016/j.mencom.2008.09.018
https://doi.org/10.1016/j.mencom.2008.09.018