Application of Enantioselective Sulfur Ylide Epoxidation to a Short Asymmetric Synthesis of Bedaquiline, a Potent Anti-Tuberculosis Drug
作者:Maryam Bashir、Muhammad Arshad、Robina Begum、Varinder K. Aggarwal
DOI:10.1021/acs.orglett.3c01286
日期:2023.6.16
A highly selective asymmetricsynthesis of a potent anti-TB drug (−)-bedaquiline is accomplished using sulfur ylide asymmetric epoxidation, employing (+)-isothiocineole as an inexpensive and readily available chiral sulfide. Excellent enantioselectivity (er 96:4) and diastereoselectivity (dr 90:10) were obtained for the construction of the key diaryl epoxide, which was subsequently subjected to a highly
[EN] ANTIMICROBIAL COMPOSITION FOR ANIMAL FEED<br/>[FR] COMPOSITION ANTIMICROBIENNE DESTINÉE À DES ALIMENTS POUR ANIMAUX
申请人:TAMINCO BVBA
公开号:WO2021069572A1
公开(公告)日:2021-04-15
The invention relates to an anti-microbial composition [composition (C), herein after], wherein said composition (C) comprises from 60.00 to 94.45 % by weight (wt. %) of at least one monocarboxylic acid having from 1 to 5 carbon atoms, or a salt, or mixtures thereof; from 5.00 to 25.00 % by weight (wt. %) of at least one medium-chain fatty acid comprising from 6 to 12 carbon atoms or derivatives thereof, from 0.05 to 2.50 % by weight (wt. %) of at least one monoterpene; wherein said composition (C) is substantially free of aliphatic aldehydes having from 1 to 12 carbon atoms and wherein all wt. % are relative to the total weight of the composition (C).
[EN] METHODS OF USING FORMALDEHYDE-FREE ANTIMICROBIAL COMPOSITIONS IN ANIMAL BY-PRODUCT COMPOSITIONS<br/>[FR] PROCÉDÉS D'UTILISATION DE COMPOSITIONS ANTIMICROBIENNES EXEMPTES DE FORMALDÉHYDE DANS DES COMPOSITIONS DE SOUS-PRODUITS ANIMAUX
申请人:[en]EASTMAN CHEMICAL COMPANY
公开号:WO2022217031A1
公开(公告)日:2022-10-13
Formaldehyde is a common component of antimicrobial compositions for preserving animal feeds. However, the use of formaldehyde is coming under pressure and alternative antimicrobial compositions are needed. The present application discloses methods and/or uses of a formaldehyde-free antimicrobial composition comprising formic acid and propionic acid in the making of rendered animal protein compositions or in the inhibiting of the development ofSalmonellabacteria in animal by-product compositions (e.g., rendered animal proteins) while maintaining higher protein digestibility comparing with formaldehyde.