[EN] COMPOSITIONS OF BIOLOGICALLY ACTIVE MENAQUINOL DERIVATIVES AND METHODS OF TREATMENT [FR] COMPOSITIONS DE DÉRIVÉS DE MÉNAQUINOL BIOLOGIQUEMENT ACTIFS ET MÉTHODES DE TRAITEMENT
摘要:
The present application discloses, in part, isolated, stable and biologically active menaquinol derivatives and their methods of use for the treatment of various diseases.
Using a combination of Kumada, Suzuki and Biellmann chemistry, various menaquinones can synthesised rapidly and with stereochemical integrity offering a new way of preparing these vitamin K2 components for the pharmaceutical market. In one embodiment a process for the preparation of a compound of formula (I) is defined including a step in which (i) a compound of formula (II) is reacted formula (III) wherein R is an alkyl group; LG is a leaving group; m is an integer from 0 to 8; n is an integer of from 0 to 9; and X is hydrogen, halide, hydroxyl or protected hydroxyl; in the presence of a copper, nickel or palladium catalyst.
Allylations of aryl/heteroaryl ketones: neat, clean, and sustainable. Applications to targets in the pharma- and nutraceutical industries
作者:Xiaohan Li、Alex B. Wood、Nicholas R. Lee、Fabrice Gallou、Bruce H. Lipshutz
DOI:10.1039/d2gc00776b
日期:——
Aromatic and heteroaromatic ketones bearing an α-methine proton can be deprotonated and mono-allylated in minutes in the complete absence of an organic solvent to arrive at the corresponding products in high isolated yields. Applications to synthetic targets including both MK-7 and MK-9, as well as coenzyme Q9 (CoQ9), utilizing this new technology are documented.