Zobrazeno 1 - 5
of 5
pro vyhledávání: '"A V, Symon"'
Autor:
A.P. Kaplun, V. I. Shvets, E L Surkova, A. V. Symon, N. K. Vlasenkova, G. K. Gerasimova, E F Litvin, L M Kozlova, Le Bang Shon
Publikováno v:
Russian Journal of Bioorganic Chemistry. 29:185-189
Two methods of obtaining of 3 alpha-betulinic acid and related compounds from their 3 beta-epimers were studied: the reaction of bimolecular substitution and the stereoselective reduction of 3-ketoderivatives. The substitution of acyloxy by formyloxy
Autor:
A.P. Kaplun, G. K. Gerasimova, V. I. Shvets, N. N. Veselova, A. V. Symon, A. I. Lyutik, G. A. Fedorova, N. K. Vlasenkova
Publikováno v:
Bioorganicheskaia khimiia. 31(3)
New cyclopropane derivatives of betulin were synthesized by attachment of dichlorocarbenes or dibromocarbenes to the double bond of betulin diacetate, followed by the deprotection of hydroxyl groups. The betulin cyclopropane derivative was obtained f
Autor:
A V, Symon, A P, Kaplun, N K, Vlasenkova, G K, Gerasimova, Le Bang, Shon, E F, Litvin, L M, Kozlova, E L, Surkova, V I, Shvets
Publikováno v:
Bioorganicheskaia khimiia. 29(2)
Two methods of obtaining of 3 alpha-betulinic acid and related compounds from their 3 beta-epimers were studied: the reaction of bimolecular substitution and the stereoselective reduction of 3-ketoderivatives. The substitution of acyloxy by formyloxy
Autor:
A. V. Symon, N. N. Veselova, A.P. Kaplun, N. K. Vlasenkova, G. A. Fedorova, A. I. Lyutik, G. K. Gerasimova, V. I. Shvets
Publikováno v:
Russian Journal of Bioorganic Chemistry; May2005, Vol. 31 Issue 3, p286-291, 6p
Autor:
L. V. Symon, C. R. de Freitas
Publikováno v:
Polar Record. 23:651-659
An index of human ‘survival time outdoors in extreme cold’ (STOEC) has been developed, using body-atmosphere energy budget modelling procedures. The index, which is applicable in places like Antarctica where only limited climatological data are a