1377049-84-7Relevant articles and documents
Method for preparing NS5A inhibitor-Velpatasvir
-
, (2020/05/01)
The invention discloses a method for preparing an NS5A inhibitor-Velpatasvir, wherein the method mainly comprises the five steps: 1) carrying out docking reaction on reaction initial raw materials VPM1, VPM2 and VPM3 under the catalytic action of alkali to prepare an intermediate VP1; 2) removing amino protecting groups from the intermediate VP1 by using a protecting group removing reagent to prepare an intermediate VP2; 3) carrying out cyclization on the intermediate VP2 and an amine compound to prepare an intermediate VP3; 4) carrying out a reaction on the intermediate VP3 with VPM4 under the action of a condensing agent to prepare an amide compound intermediate VP4; and 5) carrying out oxidation reaction on the intermediate VP4 under the action of an oxidizing agent to prepare Velpatasvir. The preparation process of Velpatasvir has the characteristics of simplified route, simple reaction conditions, enhanced operability and higher product yield, and is more suitable for large-scaleindustrial production.
Compound used for inhibiting hepatitis C virus, and pharmaceutical applications thereof
-
, (2018/04/01)
The invention relates to a compound which is represented by formula I, is used for inhibiting hepatitis C virus, and possesses excellent bioavailability, and a nontoxic pharmaceutically acceptable salt thereof. The compound possesses extremely high inhibition effect on HCV of all genotypes. In the formula I, R is used for representing hydrogen atom, glycyl, L-alanyl, L-leucyl, L-valyl, or L-isoleucyl.
Preparation of velpatasvir and derivatives thereof
-
, (2017/08/29)
The invention relates to a preparation method of velpatasvir and derivatives thereof. Concretely, the preparation method provided by the invention comprises the step of preparing the velpatasvir and derivatives thereof (definitions of all the groups are described in the specification) by virtue of an intermediate compound shown in a formula. The preparation method provided by the invention has the advantages that byproducts are fewer, cost is low, and the preparation method is applicable to industrial production of velpatasvir. (The formula is described in the specification.).