Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Arpine V. Geolchanyan"'
Autor:
Peter Langer, Tariel V. Ghochikyan, Lilit V. Khachatryan, Hayarpi M. Simonyan, Ashot S. Saghyan, Amanzhan T. Saginayev, Nazken K. Kelzhanova, Satenik G. Petrosyan, Arpine V. Geolchanyan, M. A. Samvelyan, Anna F. Mkrtchyan
Publikováno v:
Zeitschrift für Naturforschung B. 69:451-460
An efficient method for the asymmetric synthesis of a-amino acids, containing furyl- and thiophenyl-substituted triazoles in their side-chain, is reported. The strategy relies on Michael addition of 3,4,5-substituted 1,2,4-triazoles to the C=C bond o
Autor:
Satenik Mkrtchyan, Ashot S. Saghyan, Gnel M. Mkrtchyan, Anna F. Mkrtchyan, Satenik G. Petrosyan, Hayarpi M. Simonyan, Ashot Gevorgyan, Peter Langer, Ani S. Dadayan, Arpine V. Geolchanyan, Viktor O. Iaroshenko
Publikováno v:
Tetrahedron: Asymmetry. 24:229-232
The conjugate addition of S-, N- and O-heterocyclic nucleophiles to the C C bond of dehydroalanine, bonded as a Schiff’s base to the chiral auxiliary (S)-2-[N-(N′-benzylprolyl)amino]benzophenone in the coordination sphere of NiII, resulted in the
Autor:
Ashot S. Saghyan, L. L. Manasyan, Peter Langer, Hayarpi M. Simonyan, Nelli Hovhannisyan, Lala A. Stepanyan, Tariel V. Ghochikyan, Viktor O. Iaroshenko, Samvel G. Ghazaryan, Arpine V. Geolchanyan, Ashot Gevorgyan, Vahe T. Ghochikyan
Publikováno v:
Tetrahedron: Asymmetry. 23:891-897
The asymmetric synthesis of novel non-proteinogenic β-heterocyclic α-amino acids via the diastereoselective conjugate addition of heterocyclic nucleophiles to the dehydroalanine moiety of chiral Ni(II) complexes has been studied. The complexes were
Autor:
Henry A. Panosyan, Arpine V. Geolchanyan, Victor N. Khrustalev, Slavik A. Dadayan, A. S. Saghiyan, L. L. Manasyan, Victor I. Maleev, Satenik G. Petrosyan
Publikováno v:
Synthetic Communications. 41:493-506
The reactions of asymmetric C-alkylation of glycine and alanine in NiII complexes of their Schiff's bases with modified chiral auxiliaries (S)-2-N-[(N′-2-chlorobenzylprolyl)amino]benzophenone and (S)-2-N-[N′-(3,4-dimethylbenzylprolyl)amino]benzop
Autor:
Slavik Arshak Dadayan, Victor I. Maleev, Hrant R. Ajvazyan, Ani Slavik Dadayan, Anna F. Mkrtchyan, Ashot S. Saghyan, Hasmik H. Hambardzumyan, Arpine V. Geolchanyan, Victor N. Khrustalev, Luiza L. Manasyan
Publikováno v:
Tetrahedron: Asymmetry. 21:2956-2965
New fluorine-containing chiral auxiliaries ( S )- N -(2-benzoylphenyl)-1-(2-fluorobenzyl)-, ( S )- N -(2-benzoylphenyl)-1-(3-fluorobenzyl)-, and ( S )- N -(2-benzoylphenyl)-1-(4-fluorobenzyl)-pyrrolidine-2-carboxamide and their Ni II complexes of Sch
Autor:
Luiza L. Manasyan, V. I. Maleev, Arpine V. Geolchanyan, Henry A. Panosyan, Tatiana F. Savel'eva, Lala A. Stepanyan, Hrant R. Ajvazyan, Ashot S. Saghiyan, Silva M. Djamgaryan
Publikováno v:
Tetrahedron: Asymmetry. 21:2638-2645
New chiral NiII complexes of Schiff bases of dehydroalanine with modified chiral auxiliaries (S)-2-N-[N′-(3,4-dichlorobenzyl)prolyl]aminobenzophenone (3,4-DCBPB), (S)-2-N-[N′-(3,4-dimethylbenzyl)prolyl]aminobenzophenone (3,4-DMBPB), (S)-2-N-[N′
Autor:
A. S. Saghiyan, Arpine V. Geolchanyan
Publikováno v:
Synthetic Communications. 36:3667-3677
A new method for asymmetric synthesis of all possible stereomers of 4‐aminoglutamic acid has been developed. The method is based on asymmetric Michael condensation of the nucleophilic moiety of glycine and electrophilic moiety of dehydroalanine in
Autor:
A. S. Saghiyan, Victor N. Khrustalev, Arpine V. Geolchanyan, Satenik G. Petrosyan, Luisa L. Manasyan, Silva M. Djamgaryan, Victor I. Maleev, Sargis A. Andreasyan, Slavik A. Dadayan
Publikováno v:
Tetrahedron: Asymmetry. 17:455-467
New modified chiral auxiliaries (S)-N-(2-benzoylphenyl)-1-(2-chlorobenzyl)pyrrolidine-2-carboxamide (2-CBPB) and (S)-N-(2-benzoylphenyl)-1-(3,4-dimethylbenzyl)pyrrolidine-2-carboxamide (3,4-DMBPB) and their NiII complexes of Schiff’s base with glyc
Autor:
T. V. Kochickyan, L. L. Manasyan, Slavik A. Dadayan, Yu. N. Belokon, Vitali I. Tararov, V. S. Harutyunyan, A. S. Saghiyan, N. R. Martirosyan, Arpine V. Geolchanyan, G. M. Mkrtchyan, V. I. Maleev, A. A. Avetisyan
Publikováno v:
Russian Chemical Bulletin. 53:932-935
An efficient method was developed for the asymmetric synthesis of (R)-S-(1,2,4-triazol-3-yl)cysteines by the addition of 3,4-disubstituted 1,2,4-triazole-5-thiols at the electrophilic C=C bond in a NiII complex of a Schiff base of dehydroalanine with
Autor:
V.S. Haroutunyan, Yu. N. Belokon, Satenik G. Petrosyan, A. S. Saghiyan, K. Fisher, Tariel V. Ghochikyan, Arpine V. Geolchanyan, A. A. Avetisyan
Publikováno v:
Tetrahedron: Asymmetry. 15:705-711
A new efficient method of asymmetric synthesis of β-heterocycle substituted l -α-amino acids through the addition of 3-amino-1,2,4-thiodiazole and 5-mercapto-1,2,4-triazoles, containing various substituents at the 3 and 4 positions, to the CC bo