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A terbium-antimony-oxo-cluster bridging antimonotungstate (AT) [H 2 N(CH 3 ) 2 ] 8 Na 6 H 8 {[Tb 4 (H 2 O) 6 Sb 6 O 4 ](SbW 10 O 37 ) 2 (B-α-SbW 8 O 31 ) 2 }·24H 2 O (1) was successfully prepared by reaction of Na 9 [B-α-SbW 9 O 33 ]·19·.5H 2 O, SbCl 3 , Tb(NO 3 ) 3 ·6H 2 O and dimethylamine hydrochloride (DMA·HCl) in acidic aqueous solution. Its tetramer polyanion consists of two divacant [SbW 10...
We described the discovery and optimization of a novel series of pyrimidopyrimidine derivatives as G-protein coupled receptor 119 (GPR119) agonists against type 2 diabetes. Most designed compounds displayed significant GPR119 agonistic activities. Optimized analogues 15a and 21e exhibited highly potent agonistic activities with single digit EC50 values (2.2 nM and 8.1 nM, respectively). Therefore,...
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