Poster presentation
239
BENZYLATION OF TRIACANTHINE
Sh.B. Rakhimov, V.I. Vinogradova
S.Yu. Yunusov Institute of the Chemistry of Plant Substances Academy of sciences of the
Republic of Uzbekistan st. Mirzo-Ulugbek, 77, 100170 Tashkent
e-mail: rshukhrat70@mail.ru
Continuing the study of the reactions of triacanthine, we carried out the benzylation
of triacanthine with benzyl chloride. The reactions were carried out by two methods: the
reaction mixture was heated on a water bath (7 h, ~100°C, method A) or boiled (1 h,
~180°C, method B).
In the reaction according to method A, three products were formed, 6-N-benzyl- (
2
),
6N, 8-dibenzyltriacanthine (
3
), and tribenzyladenine (
4
).
The use of high temperature
(~180
o
С, method B) led to the preparation of differently substituted adenine derivatives
(
5-7
).
Compounds
3, 6, 7
are N
+
-7 quaternary salt.
The structure of the obtained compounds was proved by the data of chromato-mass,
1
Н,
13
С NMR spectra, and X-ray diffraction.
N
N
N
N
NH
2
CH
2
CH
C
CH
3
H
3
C
CH
2
Cl
N
N
+
N
N
NH
CH
2
CH
C
CH
3
H
3
C
Cl
-
+
t
,
Na
2
CO
3
+
N
N
N
N
NH
CH
2
CH
C
CH
3
H
3
C
N
N
N
N
N
7
'
7
'
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