Zobrazeno 1 - 10
of 211
pro vyhledávání: '"E. E. LIEPIN'SH"'
Autor:
E. E. Liepin'sh, Ruslan Muhamadejev, Marina Petrova, Aiva Plotniece, Gunars Duburs, Rufus Smits, Karlis Pajuste
Publikováno v:
New Journal of Chemistry. 42:6942-6948
The use of 1,4-dihydropyridine (DHP) vesicles as drug delivery agents can improve the diffusion of nucleoside and nucleotide prodrugs through the cellular membrane without degradation. Different NMR studies: spin–lattice relaxation in the rotating
Autor:
Marina Petrova, Ruslan Muhamadejev, Gunars Duburs, Aiva Plotniece, B. A. Vigante, E. E. Liepin'sh, Brigita Cekavicus, A. Chesnokov
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:1631-1639
Structural characteristics of 1,4-dihydropyridines influencing the nonequivalence of the diastereotopic methylene protons in substituents at positions 2 and 6 were studied. The combined effect of magnetically anisotropic groups and intramolecular hyd
Autor:
A. F. Mishnev, E. E. Liepin'sh, E. Kuznetsov, Natalja Orlova, S. Vikainis, Maksims Vorona, Sergey Belyakov, Grigory Veinberg
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:1118-1127
An effective method for the conversion of 1-acetyl-4-phenyl-2-pyrrolidone into 1-acetyl-4-phenyl-3-pyrrolin-2-one by bromination–dehydrobromination with N-bromosuccinimide, catalyzed by azo-bisisobutyronitrile or by UV irradiation is developed. The
Autor:
Iveta Kanepe, Maksims Vorona, Irina Shestakova, E. E. Liepin'sh, Marina Petrova, Irina Potoročina, Edmunds Lukevics, Grigory Veinberg
Publikováno v:
Chemistry of Heterocyclic Compounds. 45:228-244
The condensation of the acetylmethylene group in the tert-butyl esters of 7Z-acetylmethylene-3-methyl-3-cephem-4-carboxylic acid and 7Z-acetylmethylene-3-methyl-1,1-dioxo-3-cephem-4-carboxylic acid and in 7Z-acetylmethylene-3-methylene-1,1-dioxo-3-ce
Autor:
I. Shestakova, Grigory Veinberg, R. Bokaldere, K. Dikovskaya, Marina Petrova, Iveta Kanepe, Maksims Vorona, E. E. Liepin'sh, I. Potorochina, Edmunds Lukevics
Publikováno v:
Chemistry of Heterocyclic Compounds. 43:207-219
The tert-butyl esters of 3-azidomethyl-, 3-isocyanatomethyl-, 3-chloromethyl-, and 3-p-nitrophenylvinyl-7α-chloro-1,1-dioxoceph-3-em-4-carboxylic acid, and also esters of 7α-chloro-3-methyl-1,1-dioxoceph-3-em-4-carboxylic acid, and of 7α-chloro-3-
Autor:
Sergey Belyakov, S. Vikainis, A. F. Mishnev, Grigory Veinberg, Natalja Orlova, E. Kuznetsov, E. E. Liepin'sh, Maksims Vorona
Publikováno v:
ChemInform. 45
An effective method for the conversion of 1-acetyl-4-phenyl-2-pyrrolidone into 1-acetyl-4-phenyl-3-pyrrolin-2-one by bromination–dehydrobromination with N-bromosuccinimide, catalyzed by azo-bisisobutyronitrile or by UV irradiation is developed. The
Publikováno v:
Chemistry of Heterocyclic Compounds. 35:1415-1422
2-Acetyl-5-methyl-4-nitrofuran and 3,5-dinitro-α-methylfuran were obtained by the reaction of 70% nitric acid with 2-acetyl-5-methylfuran, its oxime and semicarbazone in concentrated H2SO4. ω-Bromonitro ketone and a series of 5-methyl-4-nitro-2-fur
Autor:
E. E. Liepin'sh, I. Ch. Bilinskaite, R. S. Baltrushis, R. M. Zolotoyabko, V. Yu. Mitskyavichyus
Publikováno v:
ChemInform. 22
Autor:
R. S. Baltrushis, I. Ch. Bilinskaite, V. Yu. Mickyavichius, R. M. Zolotoyabko, E. E. Liepin'sh
Publikováno v:
ChemInform. 24
Autor:
Marina Petrova, Irina Shestakova, Grigory Veinberg, Edmunds Lukevics, E. E. Liepin'sh, Iveta Kanepe, Irina Potoročina, Maksims Vorona
Publikováno v:
ChemInform. 40
The condensation of the acetylmethylene group in the tert-butyl esters of 7Z-acetylmethylene-3-methyl-3-cephem-4-carboxylic acid and 7Z-acetylmethylene-3-methyl-1,1-dioxo-3-cephem-4-carboxylic acid and in 7Z-acetylmethylene-3-methylene-1,1-dioxo-3-ce