Synthesis and biological evaluation of closo-dodecaborate ibuprofen conjugate (DIC) as a new boron agent for neutron capture therapy

Publication date: Available online 21 February 2018 Source:Journal of Organometallic Chemistry Author(s): Satomu Ishii, Hiroyuki Nakamura A closo-dodecaborate ibuprofen conjugate (DIC) 1 was synthesized via amide bond formation between ibuprofen activated with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDCI) and 4-aminoethoxyethoxy-closo-dodecaborate 3 which was synthesized via the ring opening reaction of 1,4-dioxane-closo-dodecaborate complex 2 with ammonia in aqueous solution. DIC showed no significant binding affinity to HSA site 2, which is known as an ibuprofen binding site. DIC accumulated in HeLa cells in a time-dependent manner, and the boron concentration reached 0.68 μg/106 cells 6 h after administration. Graphical abstract
Source: Journal of Organometallic Chemistry - Category: Chemistry Source Type: research
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