Herein, we report a metal-free radical tandem C–H amination and bromination reaction with dibromohydantoin (DBH) as both the amination and brominationreagents and water as the main solvent. The reaction involves in intramolecular C–H amination and electrophilicbromination using cheap commercially available DBH. The products represent heterocyclic building blocks, readily modifiable by classical cross-coupling
Electrochemical Oxidative Syntheses of NH‐Sulfoximines, NH‐Sulfonimidamides and Dibenzothiazines via Anodically Generated Hypervalent Iodine Intermediates
through direct electrochemical oxidative catalysis involving an iodoarene(I)/iodoarene(III) redox couple. In addition, dibenzothiazines can be synthesized from [1,1′-biaryl]-2-sulfides under standard conditions. Notably, only a catalytic amount of iodoarene is required for the generation in situ of an active hypervalent iodine catalyst, which avoids the need for an excess of a hypervalent iodine reagent
在此,我们报告了一种通过直接电化学氧化催化合成 NH-亚砜亚胺和 NH-磺酰亚胺酰胺的通用方法,该催化涉及碘芳烃 (I)/碘芳烃 (III) 氧化还原对。此外,二苯并噻嗪可以在标准条件下由 [1,1'-联芳基]-2-硫化物合成。值得注意的是,原位生成活性高价碘催化剂只需要催化量的碘芳烃,这避免了相对于常规方法需要过量的高价碘试剂。此外,该协议具有广泛的底物范围和广泛的官能团耐受性,即使在超过 10 g 的规模下,也能以良好到卓越的收率交付目标化合物。
Synthesis of dibenzothiazines from sulfides by one-pot<i>N</i>,<i>O</i>-transfer and intramolecular C–H amination
Herein, we report a metal-free and step-economic synthesis of iodo-dibenzothiazines from 2-biaryl sulfides under mild reaction conditions. The reaction involves sulfoximination of sulfides, intramolecular C–H amination, and iodization using cheap commercially available reagents. The products represent heterocyclic building blocks, readily modifiable by classical cross-coupling reactions.
The present invention provides a compound of Formula (I)
as described herein, or a pharmaceutically acceptable salt or a solvate thereof. The present invention also provides pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing a thromboses, embolisms, hypercoagulability or fibrotic changes.