Synthesis, Crystal Structure, and Rotational Energy Profile of 3-Cyclopropyl-1,2,4-benzotriazine 1,4-Di-N-oxide
作者:Ujjal Sarkar、Rainer Glaser、Zack D. Parsons、Charles L. Barnes、Kent S. Gates
DOI:10.1007/s10870-010-9707-9
日期:2010.7
1,2,4-Benzotriazine 1,4-di-N-oxides are potent antitumor drug candidates that undergo in vivo bioreduction leading to selective DNA damage in the low oxygen (hypoxic) cells found in tumors. Tirapazamine (TPZ) is the lead compound in this family. Here we report on the synthesis, crystal structure, and conformational analysis of a new analog, 3-cyclopropyl-1,2,4-benzotriazine 1,4-di-N-oxide (3). Compound 3 (C10H10N3O2) crystallized in the monoclinic space group C2/c. Unit cell parameters for 3: a = 16.6306 (12), b = 7.799 (5), c = 16.0113 (11) Å, α = 90, β = 119.0440 (10), γ = 90, and z = 8. 1,2,4-Benzotriazine 1,4-di-N-oxides are antitumor drug candidates that undergo in vivo bioreduction to yield DNA-damaging radical intermediates in hypoxic tumor cells. Here we report on the synthesis, crystal structure, and conformational analysis of a new analog, 3-cyclopropyl-1,2,4-benzotriazine 1,4-di-N-oxide (3).
1,2,4-苯并三嗪-1,4-二-N-氧化物是一种有效的抗肿瘤候选药物,可在体内进行
生物还原,导致肿瘤中的低氧(缺氧)细胞发生选择性 DNA 损伤。替拉帕扎胺(T
PZ)是该家族的主要化合物。在此,我们报告了一种新的类似物--3-环丙基-
1,2,4-苯并三嗪 1,4-二-N-氧化物(3)的合成、晶体结构和构象分析。化合物 3(
C10H10N3O2)在单斜空间群 C2/c 中结晶。3 的单胞参数:a = 16.6306 (12),b = 7.799 (5),c = 16.0113 (11) Å, α = 90, β = 119.0440 (10), γ = 90, 和 z = 8.
1,2,4-苯并三嗪-1,4-二-N-氧化物是一种抗肿瘤候选药物,在缺氧的肿瘤细胞中会发生体内
生物还原,产生破坏 DNA 的自由基中间体。我们在此报告一种新的类似物--3-环丙基-
1,2,4-苯并三嗪 1,4-二-N-氧化物(3)的合成、晶体结构和构象分析。