Journal
ORGANOMETALLICS
Volume 31, Issue 16, Pages 5810-5822Publisher
AMER CHEMICAL SOC
DOI: 10.1021/om300360c
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Funding
- Swiss National Science Foundation [PBZHP2-125507]
- Fundacao para a Ciencia e Tecnologia [SFRH/BPD/20655/2004]
- POCI 2010 (FEDER)
- Fundacao para a Ciencia e a Tecnologia (FCT)
- Julie Henry Fund at the Transplant Center of the BIDMC
- [REDE/1517/RMN/2005]
- Swiss National Science Foundation (SNF) [PBZHP2-125507] Funding Source: Swiss National Science Foundation (SNF)
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/20655/2004] Funding Source: FCT
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The discovery of the biological effects of carbon monoxide (CO) in recent years strongly suggests that CO could find applications as a therapeutic agent. CO is a highly toxic gas when used at industrial doses, due in part to its binding affinity to hemoglobin. Since hemoglobin binds CO with the highest affinity in vivo, it also constitutes a major barrier to the delivery of CO to tissues in need of therapy. A method of delivering CO that can bypass hemoglobin is the use of pro-drugs or CO carriers, called CO-releasing molecules (CO-RMs) that become activated and release CO in tissues in need of treatment. Organometallic carbonyl complexes are best suited to play the role of CO carriers, and indeed the natural CO carrier molecules hemoglobin and myoglobin belong to this class of chemical compounds. Here we describe the preparation of novel molybdenum CO-RMs of general formula Mo(CO)(3)(CNCR'R '' CO2R''')(R', R '' = H, Me, Pr-i, CH2Ph, CO2Li, -CH2CH2-, -CH2(CH2)(3)CH2-; R''' = H, Li), which present favorable druglike characteristics, have low toxicity, and demonstrate specific CO delivery to the liver in the treatment of acetaminophen (APAP)-induced acute liver failure in mice.
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