Insertion of Diazo Esters into C–F Bonds toward Diastereoselective One-Carbon Elongation of Benzylic Fluorides: Unprecedented BF<sub>3</sub> Catalysis with C–F Bond Cleavage and Re-formation
作者:Fei Wang、Yoshihiro Nishimoto、Makoto Yasuda
DOI:10.1021/jacs.1c10517
日期:2021.12.15
Selective transformation of C–F bonds remains a significant goal in organic chemistry, but C–F insertion of a one-carbon-atom unit has never been established. Herein we report the BF3-catalyzed formal insertion of diazo esters as one-carbon-atom sources into C–F bonds to accomplish one-carbon elongation of benzylic fluorides. A DFT calculation study revealed that the BF3 catalyst could contribute to
The present disclosure provides phosphatidylinositol 3-kinase (PI3K) inhibitors of formula (I),
or pharmaceutically acceptable salts thereof, in which n, m, R
1
, R
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, and R
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are as defined herein. These compounds are useful for treatment of conditions mediated by one or more PI3K isoforms, such as PI3Kδ. The present disclosure further provides pharmaceutical compositions that include a compound of formula (I), or pharmaceutically acceptable salts thereof, and methods of using these compounds and compositions to treat conditions mediated by one or more PI3K isoforms, such as PI3Kδ.