N-hydroxymethyl Derivatives of Nitrogen Heterocycles as Possible Prodrugs I: N-hydroxymethylation of Uracils
作者:Padam C. Bansal、Ian H. Pitman、Josiah N.S. Tam、Mathias Mertes、James J. Kaminski
DOI:10.1002/jps.2600700803
日期:1981.8
constants for formation of N-1-hydroxymethyl derivatives were approximately twice those for formation of N-3-hydroxymethyl derivatives, and they were formed more rapidly throughout the pH 3--8 range. Substituents at C-5 of uracil had little effect on the thermodynamics of N-hydroxymethylation. The potential usefulness of N-hydroxymethyl compounds as prodrugs is discussed.
Synthesis and Bioevaluation of 5-Fluorouracil Derivatives
作者:Zhi-Yong Tian、Gang-Jun Du、Song-Qiang Xie、Jin Zhao、Wen-Yuan Gao、Chao-Jie Wang
DOI:10.3390/12112450
日期:——
A series of six novel 5-fluorouracil derivatives 1-6 were synthesized and theirstructures confirmed by 1H- and 13C-NMR, MS and elemental analysis. The preliminary invitro antitumor activities against B16, K562 and CHO cells and the in vivo inhibitions ofliver cancer H22 demonstrated that some of these compounds effectively inhibit the growthof tumor cells, but the in vivo trials in mice revealed that the compounds also exhibitedserious liver and lung tissue toxicity. The hydrolysis experiments indicated that this type ofcompound did not readily liberate 5-fluorouracil, as expected.
Engineering lauric acid-based nanodrug delivery systems for restoring chemosensitivity and improving biocompatibility of 5-FU and OxPt against <i>Fn</i>-associated colorectal tumor
regimen of 5-fluorouracil (5-FU) and platinum(IV) oxaliplatin prodrug (OxPt) is an effective strategy for CRC treatment in clinical practice, chemotherapy resistance caused by tumor-resided Fusobacterium nucleatum (Fn) could result in treatment failure. To enhance the efficacy and improve the biocompatibility of combination chemotherapy, we developed an antibacterial-based nanodrug delivery system for
Synthesis of allyloxycarbonyloxymethyl-5-fluorouracil and copolymerizations with N-vinylpyrrolidinone
作者:Zuifang Liu、Nigel Fullwood、Steve Rimmer
DOI:10.1039/b002092n
日期:——
Poly(N-vinylpyrrolidinone) (PNVP) bearing 5-fluorouracil (5-FU) moieties was synthesised via a three-step method. Firstly, 5-FU reacted with formaldehyde to form a mixture of mono- and disubstituted hydroxymethyl-5-FUs. The mixture was then treated with allyl chloroformate to afford allyloxycarbonyloxymethyl-5-FUs. This reaction showed site-specificity: the hydroxymethyl goup at the N-1 position readily reacted with chloroformate whereas the N-3 hydroxymethyl group partially decomposed into formaldehyde and the amide group. 1-Allyloxycarbonyloxymethyl-5-FU (4) and NVP were copolymerized in dioxane using azobisisobutyronitrile as an initiator. The monomer reactivity ratios, r(4) = 0.32 and r(NVP) = 0.97, were evaluated by both linear and non-linear methods.
[EN] DRUG FORMULATIONS FOR CANCER TREATMENT<br/>[FR] FORMULATIONS DE MÉDICAMENTS POUR LE TRAITEMENT DU CANCER