The present invention relates to compounds of formula (I), wherein Ra, Rb, Rc, Rd, Re and Rf are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of diseases mediated by phosphatidylinositol-3-kinase (PBK), mammalian target of rapamycin (mTOR), Signal transducer and activator of transcription 3 (STAT 3), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) or a combination thereof particularly in the treatment of cancer and inflammation.
The present invention relates to compounds of formula (I),
wherein R
a
, R
b
, R
c
, R
d
, R
e
and R
f
are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of diseases mediated by phosphatidylinositol-3-kinase (PI3K), mammalian target of rapamycin (mTOR), Signal transducer and activator of transcription 3 (STAT 3), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) or a combination thereof particularly in the treatment of cancer and inflammation.
A facile electrochemical sulfonylative cycloetherification of linear unsaturated alcohols with sulfonyl hydrazides under mild conditions has been accomplished. This catalyst- and oxidant-free protocol proceeds via electro-oxidation, followed by radicaladdition, as well as an intramolecular oxygen nucleophilic process. This methodology is compatible with a broad substrate scope and good functional
An effective electrochemical rearrangement reaction, both oxidant and metal catalyst-free, is presented to construct γ-keto sulfones containing a β-quaternary carbon center in this study. In the protocol, radicals are generated from benzenesulfonyl hydrazines, which cause 1,2-migrations of starting materials, 2-methylallyl alcohol derivatives, and formation of new C–C and C–S bonds. A series of aryl-migration