Chiral Analogues of PFI-1 as BET Inhibitors and Their Functional Role in Myeloid Malignancies
摘要:
Structural analogues of PFI-1 varying at the sulfur core were prepared, and their activities as BET inhibitors in myeloid cell lines and primary cells from patients with acute myeloid leukemia were studied. Docking calculations followed by molecular dynamics simulations revealed the binding mode of the newly prepared inhibitors, suggesting explanations for the observed high enantiospecificity of the inhibitory activity.
An efficient kineticresolution of sulfoximines with enals was realized using chiral N-heterocyclic carbene (NHC) catalysts. The stereoselective amidation proceeds without additional acyl transfer agent. Both enantiomers of the sulfoximines can be obtained with excellent ee values (up to 99% ee and -97% ee, respectively). Performing the catalysis on a gram scale allowed using the recovered sulfoximine
使用手性 N-杂环卡宾 (NHC) 催化剂实现了亚砜亚胺与烯醛的有效动力学拆分。立体选择性酰胺化无需额外的酰基转移剂即可进行。可以获得具有优异 ee 值的亚砜亚胺的两种对映异构体(分别高达 99% ee 和 -97% ee)。在 FXa 抑制剂 F 的不对称合成中使用回收的亚砜亚胺 (+)-1j 进行克级催化。
Enantioselective Synthesis of 1,2‐Benzothiazine 1‐Imines via Ru<sup>II</sup>/Chiral Carboxylic Acid‐Catalyzed C−H Alkylation/Cyclization
Enantioselective C−H alkylation/cyclization of sulfondiimines with sulfoxonium ylides using a RuII catalyst and a newly developed chiral spiro carboxylic acid enables the synthesis of 1,2-benzothiazine 1-imines, thus expanding the accessible chemical space of chiral hexavalent organosulfur scaffolds relevant to biologically active compounds.