Novel and highly efficient DNA photocleavers: hydroperoxides of heterocyclic-fused naphthalimides
摘要:
A series of novel hydroperoxides of heterocyclic-fused naphthalimides were designed, synthesized and exhibited excellent DNA photonicking activities. Among these compounds, the benzothiophenonaphthalimide-type reagent proved to be the most efficient, it can induce single-strand nicks in duplex DNA at micromolar concentration upon illumination. The relationship between the molecular structure and cleaving activities was discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.
Novel and highly efficient DNA photocleavers: hydroperoxides of heterocyclic-fused naphthalimides
摘要:
A series of novel hydroperoxides of heterocyclic-fused naphthalimides were designed, synthesized and exhibited excellent DNA photonicking activities. Among these compounds, the benzothiophenonaphthalimide-type reagent proved to be the most efficient, it can induce single-strand nicks in duplex DNA at micromolar concentration upon illumination. The relationship between the molecular structure and cleaving activities was discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.
The invention discloses novel sulfur-containing naphthalimide derivatives, and the preparation and uses thereof. The conjugated plane of naphthalimide derivatives of the invention is enlarged by incorporating 5- or 6-membered heteroaromatic ring and/or introducing S heteroatom, thus increasing the anti-tumor activity of naphthalimide. The compounds of the invention displays significant inhibiting activities to the proliferation of various tumor cells such as human lung cancer, gastric cancer, liver cancer, leucocythemia and the like. The inhibition of cell proliferation is dose-dependent.
US7541463B2
申请人:——
公开号:US7541463B2
公开(公告)日:2009-06-02
Novel and highly efficient DNA photocleavers: hydroperoxides of heterocyclic-fused naphthalimides
作者:Wei Yao、Xuhong Qian、Qingyan Hu
DOI:10.1016/s0040-4039(00)01304-6
日期:2000.9
A series of novel hydroperoxides of heterocyclic-fused naphthalimides were designed, synthesized and exhibited excellent DNA photonicking activities. Among these compounds, the benzothiophenonaphthalimide-type reagent proved to be the most efficient, it can induce single-strand nicks in duplex DNA at micromolar concentration upon illumination. The relationship between the molecular structure and cleaving activities was discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.
Novel naphthalimide hydroperoxide photonucleases: The role of thiocyclic-Fused area and the difference in spectra, photochemistry and photobiological activity
作者:Yufang Xu、Xuhong Qian、Wei Yao、Ping Mao、Jingnan Cui
DOI:10.1016/j.bmc.2003.09.026
日期:2003.12
Novel five- and six-membered thiocyclic-fused naphthalimide hydroperoxides (7, 8) as photonucleases were designed, synthesized via unusual isomerization in Pschorr cyclization and photooxygenation. The five-membered 7 was able to induce single-strand nicks in duplex DNA pH independently (7.0-8.5) at 0.5 muM under 366 nm, while the six-membered 8 could photonick the duplex DNA pH dependently (7.0-8.5) at 5 muM under 450 nm and showed 'time-controlled' photo-bioactivity. Their thiocycles and the angular conjugated plane have contributions to their binding affinity with DNA and photocleaving efficiency. (C) 2003 Elsevier Ltd. All rights reserved.