Metalated hybrid polymers as catalytic reagents for phosphate ester hydrolysis and plasmid modification

被引:20
作者
Chandrasekhar, V [1 ]
Deria, P [1 ]
Krishnan, V [1 ]
Athimoolam, A [1 ]
Singh, S [1 ]
Madhavaiah, C [1 ]
Srivatsan, SG [1 ]
Verma, S [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
关键词
cyclophosphazene; pendant polymer; catalyst; zinc; phosphate ester; hydrolysis;
D O I
10.1016/j.bmcl.2003.12.082
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Pendant pyrazolylcyclophosphazene containing hybrid cross-linked polymer (CPPL) has been utilized for binding Zn(II). The metalated polymer (CPPL-Zn) has been found to be very effective catalyst for the hydrolysis of a RNA model phosphodiester substrate [2-(hydroxypropyl)-p-nitrophenyl phosphate, hNPP]. In addition, CPPL-Zn also cleaved supercoiled plasmid DNA pBR322 thus providing a novel structural motif of inorganic-organic hybrid polymers as synthetic nucleases. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1559 / 1562
页数:4
相关论文
共 44 条
[1]   THE ORGANOMETALLIC CHEMISTRY OF PHOSPHAZENES [J].
ALLCOCK, HR ;
DESORCIE, JL ;
RIDING, GH .
POLYHEDRON, 1987, 6 (02) :119-157
[2]   Carboxy and diphosphate ester hydrolysis promoted by dinuclear zinc(II) macrocyclic complexes. Role of Zn(II)-bound hydroxide as the nucleophilic function [J].
Bencini, A ;
Berni, E ;
Bianchi, A ;
Fedi, V ;
Giorgi, C ;
Paoletti, P ;
Valtancoli, B .
INORGANIC CHEMISTRY, 1999, 38 (26) :6323-+
[3]   Silica-bound copper(II) triazacyclononane: a robust material for the heterogeneous hydrolysis of a phosphodiester [J].
Bodsgard, BR ;
Burstyn, JN .
CHEMICAL COMMUNICATIONS, 2001, (07) :647-648
[4]   EFFECTS OF METAL-IONS, INCLUDING MG2+ AND LANTHANIDES, ON THE CLEAVAGE OF RIBONUCLEOTIDES AND RNA MODEL COMPOUNDS [J].
BRESLOW, R ;
HUANG, DL .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1991, 88 (10) :4080-4083
[5]   Oxidative nucleobase modifications leading to strand scission [J].
Burrows, CJ ;
Muller, JG .
CHEMICAL REVIEWS, 1998, 98 (03) :1109-1151
[6]   Mono- and dinuclear d(10) metal complexes of hexakis(3,5-dimethylpyrazolyl)cyclotriphosphazene. Synthesis, structures, and unusual solution dynamic behavior [J].
Byun, Y ;
Min, D ;
Do, J ;
Yun, H ;
Do, Y .
INORGANIC CHEMISTRY, 1996, 35 (13) :3981-3989
[7]   COORDINATION AND ORGANOMETALLIC CHEMISTRY OF CYCLOPHOSPHAZENES AND POLYPHOSPHAZENES [J].
CHANDRASEKHAR, V ;
THOMAS, KRJ .
APPLIED ORGANOMETALLIC CHEMISTRY, 1993, 7 (01) :1-31
[8]   Advances in the chemistry of chlorocyclophosphazenes [J].
Chandrasekhar, V ;
Krishnan, V .
ADVANCES IN INORGANIC CHEMISTRY, VOL 53, 2002, 53 :159-211
[9]   Pyrazolylcyclotriphosphazene containing pendant polymers: Synthesis, characterization, and phosphate ester hydrolysis using a Cu(II)-metalated cross-linked polymeric catalyst [J].
Chandrasekhar, V ;
Athimoolam, A ;
Srivatsan, SG ;
Sundaram, PS ;
Verma, S ;
Steiner, A ;
Zacchini, S ;
Butcher, R .
INORGANIC CHEMISTRY, 2002, 41 (20) :5162-5173
[10]   Aerobic oxidation of primary alcohols (including methanol) by copper(II)- and zinc(II)-phenoxyl radical catalysts [J].
Chaudhuri, P ;
Hess, M ;
Müller, J ;
Hildenbrand, K ;
Bill, E ;
Weyhermüller, T ;
Wieghardt, K .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (41) :9599-9610