Back to Search
Start Over
Synthesis and in vitro properties of trimethylamine- and phosphonate-substituted carboranylporphyrins for application in BNCT
- Source :
-
Bioorganic & Medicinal Chemistry . Mar2008, Vol. 16 Issue 6, p3191-3208. 18p. - Publication Year :
- 2008
-
Abstract
- Abstract: A series of carboranylporphyrins containing either amine or phosphonic acid functionalities and two to six closo-carborane clusters have been synthesized via a [2+2] condensation of a dimethylamino- or diethylphosphonate-substituted dipyrromethane with a dicarboranylmethyl-benzaldehyde. The X-ray structures of four key reaction intermediates (1, 2, 3, and 4a) and of two target porphyrins, the diphosphonate ester- and the diamino-tetracarboranylporphyrins 5b and 6a, are presented and discussed. In vitro studies using human carcinoma HEp2 and human glioblastoma T98G cells show that these porphyrins are non-toxic in the dark up to 100μM concentrations, and that a tetracarboranylporphyrin bearing two quaternary ammonium groups is the most efficiently taken up by cells at short times (up to 8h), followed by a dicarboranylporphyrin bearing three phosphonic acid substituents. All carboranylporphyrins delivered therapeutic amounts of boron to T98G cells and localized mainly within the cell lysosomes. [Copyright &y& Elsevier]
- Subjects :
- *ORGANOPHOSPHORUS compounds
*PORPHYRINS
*PHOSPHONATES
*CANCER
Subjects
Details
- Language :
- English
- ISSN :
- 09680896
- Volume :
- 16
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Bioorganic & Medicinal Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 31490851
- Full Text :
- https://doi.org/10.1016/j.bmc.2007.12.020