N4-(dialkylamino)methylene derivatives of 2'-deoxycytidine and arabinocytidine: physicochemical studies for potential prodrug applications.
N4-(dialkylamino)methylene derivatives of 2'-deoxycytidine and arabinocytidine: physicochemical studies for potential prodrug applications.
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2-脱氧胞苷和阿拉伯胞苷的 N4-(二烷基氨基)亚甲基衍生物:潜在前药应用的物理化学研究。
DOI:
10.1002/jps.2600830428
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发表时间:
1994
影响因子:
3.8
通讯作者:
Kalman,TI
中科院分区:
文献类型:
--
作者:
Kerr,SG;Kalman,TI
The synthesis and physicochemical parameters of a series ofN4-(N,N-dialkyl)formamidine derivatives of 2′-deoxycytidine (dCyd,1) and arabinocytidine (ara-C,2), as prodrug prototypes, are described. The lipophilicity of the formamidine derivatives compared to that of the parent nucleosides increased 1.26- to 145-fold. The corresponding half-lives of the derivatives in aqueous solution at pH 7.4 and 37 °C ranged from 3.7 to 52 h. The analogues most stable to hydrolysis in both series (3and4) were the diisopropyl derivatives (3dand4d). The substitution effects of the sugar OH groups at the 2′- and 3′-positions on the corresponding partition coefficients gaveπ-values of − 0.16 and − 0.55, respectively. These values are significantly more positive than those generally associated with aliphatic hydroxy substituents indicating that sugar OH groups of nucleosides have a decreased tendency to associate with the aqueous phase. Thein vitrogrowth inhibitory activities of theara-C derivatives (4) against murine lymphocytic leukemia L1210 cells indicate that prodrug to drug conversion readily occurs. The results confirm our previous findings about the versatility of the formamidine modification of nucleosides bearing exocyclic amino groups. The data facilitate optimization of lipophilicities and hydrolytic stabilities and thus contribute to the design and further development of the formamidine type of prodrug derivatives.
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DOI:
--
发表时间:
1968
期刊:
影响因子:
--
作者:
H. Bredereck;G. Simchen;S. Rebsdat;W. Kantlehner;P. Horn;R. Wahl;H. Hoffmann;Peter Grieshaber
通讯作者:
Peter Grieshaber
影响因子:
7.3
作者:
C. Hong;A. J. Kirisits;A. Nechaev;D. J. Buchheit;C. West
通讯作者:
C. West
DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
A. Čegan;J. Šlosar;M. Večeřa
通讯作者:
M. Večeřa
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
T. Kalman;A. V. Reddy
通讯作者:
A. V. Reddy
DOI:
10.1016/s0006-291x(89)80063-4
发表时间:
1989
影响因子:
3.1
作者:
J. Balzarini;M. Cools;E. De Clercq
通讯作者:
E. De Clercq