Synthesis and characterization of a novel functionalized azanonaborane cluster for boron neutron capture therapy
作者:Afaf R. Genady
DOI:10.1039/b503445k
日期:——
The reactivity of an azanonaborane cluster containing free amino groups H2N(CH2)4H2NB8H11NH(CH2)4NH2} towards ketones and aldehydes is investigated. In a one step reaction, the reductive amination of some ketones and aldehydes (namely acetone, benzaldehyde, 3-hydroxybenzaldehyde, 4-hydroxybenzaldehyde, 4-nitrobenzaldehyde, 4-acetoxybenzaldehyde, and 4-acetamidobenzaldehyde) with an azanonaborane cluster in the presence of H3BNH2(CH2)4NH2 gives monoalkylamino derivatives of the azanonaborane cluster RHN(CH2)4H2NB8H11NH(CH2)4NHR} where (R =
(Me)2CH–, C6H5CH2–, 3-OHC6H4CH2–, 4-OHC6H4CH2–, 4-NO2C6H4CH2–, 4-MeOCOC6H4CH2–, or 4-NH2COC6H4CH2-). The functionalized derivatives of the B8N} cluster can be used in boron neutron capture therapy for tumors (BNCT). Similarly, the reductive amination of 5-(4′-formylphenyl)-10,15,20-triphenylporphyrin with the B8N} cluster gave a porphyrin bearing azanonaborane cluster, while a porphyrin dimer linked by an azanonaborane moiety was obtained following the same method, starting with a 2 : 1 molar ratio of porphyrin : B8N} cluster. 5,10,15,20-Tetraformylphenylporphyrin gave the chance to increase the percentage of boron in the resulting boronated porphyrin, which is considered an important factor for a BNCT delivery agent. With these compounds, the cell toxicity using V79 cells was carried out to determine whether these compounds would have favorable biological properties.
研究了含有游离
氨基
H2N(
CH2)4 B8H11NH( )4NH2} 的
氮杂
硼烷簇对
酮和醛的反应活性。在一步反应中,一些
酮和醛(即
丙酮、
苯甲醛、3-羟基
苯甲醛、
4-羟基
苯甲醛、4-硝基
苯甲醛、
4-乙酰氧基苯甲醛、和 4-乙酰
氨基
苯甲醛)与偶
氮硼烷簇在 H3BNH2( )4NH2 的存在下生成偶
氮硼烷簇的单烷基
氨基衍
生物 RHN( )4 B8H11NH( )4NHR} 其中(R = (Me)2CH-、C6H5 -、
3-OHC6H4 -、4-OHC6H4 -、4-NO2C6H4 -、4-MeOCOC6H4 -或 4-NH2COC6H4 -)。B8N}簇的官能化衍
生物可用于肿瘤的
硼中子俘获疗法(B
NCT)。同样,用B8N}簇对 5-(4′-甲酰基
苯基)-10,15,20-三
苯基
卟啉进行还原胺化,得到了含有偶
氮硼烷簇的
卟啉,而用同样的方法,从 2 : 1 摩尔比的
卟啉 : B8N}簇开始,得到了由偶
氮硼烷分子连接的
卟啉二聚体。5,10,15,20-
四甲酰基
苯基
卟啉提供了增加
硼化
卟啉中
硼比例的机会,这被认为是 B
NCT 递送剂的一个重要因素。利用这些化合物对 V79 细胞进行了细胞毒性测试,以确定这些化合物是否具有良好的
生物特性。