Asymmetric reduction of 2-chloro-3-oxo-ester into enantiomerically high pure diltiazem precursor by a Candida ketoreductase was written by Chen, Cheng;Xuan, Yang;Chen, Qi;Ni, Guo-Wei;Pan, Jiang;Xu, Jian-He. And the article was included in Molecular Catalysis in 2021.Related Products of 15399-05-0 This article mentions the following:
Me (2R,3S)-3-(4-methoxyphenyl)glycidate [(2R,3S)-MPGM] is an advanced chiral synthon for the synthesis of the cardiovascular drug diltiazem. It can be easily accessed by cyclizing the reduction products of Me 2-chloro-3-(4-methoxyphenyl)-3-oxo-propanoate. Herein, we report an identified carbonyl reductase (CpKR) from Candida parapsilosis that displayed an excellent stereoselectivity toward the keto substituent at the C3-position of the 2-chloro-3-oxo-ester. The engineered Escherichia coli cells harboring CpKR gene were directly applied for the asym. reduction of keto ester 1a with a space-time yield of 46 g L-1 d-1, which represents the highest productivity in bio-reduction reported so far. The isolated chiral alc. products were then applied to the chem. synthesis of (2R,3S)-MPGM in 99% ee and a total yield of 76% in the two-step chemo-enzymic reactions, which far exceeded the maximum theor. yield (50%) of the existing industrial process based on a lipase-catalyzed resolution of racemic MPGM. This work provides a promising eco-friendly and cost-effective route toward industrial synthesis of pharmaceutically relevant diltiazem. In the experiment, the researchers used many compounds, for example, Ethyl 2-hydroxy-3-phenylpropanoate (cas: 15399-05-0Related Products of 15399-05-0).
Ethyl 2-hydroxy-3-phenylpropanoate (cas: 15399-05-0) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Related Products of 15399-05-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics