( S )-芳基丙酸是洛芬药物的药理活性对映体,化学合成具有挑战性。在这里,我们报告了(S)-丙芬涉及苯乙烯氧化物异构酶 (SOI) 催化的环氧化物对映 Meinwald 型异构化为醛。这一成功依赖于 SOI 的工程设计,以接受具有增强活性的更大底物,以进行限速异构化步骤,使用多和谐分析来指导定向进化,这代表了膜相关酶的首次成功的基于理性的进化,而无需结构信息。与野生型 SOI 相比,工程化 SOI-F35A/A131Y 的催化效率提高了 10.5 倍,并成功地与乙醛脱氢酶级联结合,从化学衍生的 (S)-环氧化物中产生了 83-4 种 (S ) -洛芬。 89% 产率和 90–94% ee。这项工作代表了一种从烯烃合成 ( S )-洛芬的简单而清洁的路线,并且工程化的 SOI 可用于生产其他类型的手性分子。
Method for oxidizing unsaturated aromatic compounds
申请人:NIPPON PETROCHEMICALS COMPANY, LIMITED
公开号:EP0350069A2
公开(公告)日:1990-01-10
This invention relates to a method for manufacturing aromatic compounds having the following formula (II) comprising the step of reacting an unsaturated aromatic compound having the following formula (I) with an aryl compound containing an iodosyl group or the salt thereof within a temperature range of from -50 to 200oC:
A novel metal-free photochemical method for the deconstructive carboxylation of alkenes with CO2 is reported for the first time. The power of this strategy is demonstrated for the late-stage carboxylation of bioactive molecule derivatives and the synthesis of propionate nonsteroidal anti-inflammatory drugs.
A novel anti-tumour strategy by optimising a promising molecule targeting the TLR2/4 pathway simultaneously, which inhibits proliferation of multiple cancer cells.