Alkynyl and azido-substituted 4-anilinoquinazolines
申请人:Pfizer Inc.
公开号:US05747498A1
公开(公告)日:1998-05-05
The invention relates to compounds of the formula ##STR1## and to pharmaceutically acceptable salts thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, n and m are as defined herein. The compounds of formula I are useful in the treatment of hyperproliferative diseases, such as cancer. The invention further relates to processes of making the compounds of formula I and to methods of using such compounds in the treatment of hyperproliferative diseases.
[EN] PREPARATION PROCESS OF ERLOTINIB<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ERLOTINIB
申请人:ESTEVE QUIMICA SA
公开号:WO2011076813A1
公开(公告)日:2011-06-30
Preparation process of erlotinib or its salts comprising: reacting 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline with 3-ethynylaniline or a salt thereof in the presence of a base and a reaction-inert solvent, and optionally, treating the compound obtained with a pharmaceutically acceptable acid to form the corresponding pharmaceutically acceptable salt. The compound 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline can be prepared either from 4-methoxyquinazoline-6,7-diol or 6,7-bis(2-methoxyethoxy)quinazolinone. The compounds 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline and 4-methoxyquinazoline-6,7-diol are new intermediates useful for the preparation of erlotinib or its salts.
Preparation process of erlotinib or its salts comprising: reacting 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline with 3-ethynylaniline or a salt thereof in the presence of a base and a reaction-inert solvent, and optionally, treating the compound obtained with a pharmaceutically acceptable acid to form the corresponding pharmaceutically acceptable salt. The compound 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline can be prepared either from 4-methoxyquinazoline-6,7-diol or 6,7-bis(2-methoxyethoxy)quinazolinone. The compounds 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline and 4-methoxyquinazoline-6,7-diol are new intermediates useful for the preparation of erlotinib or its salts.
[EN] CD16A BINDING AGENTS AND USES THEREOF<br/>[FR] AGENTS DE LIAISON À CD16A ET LEURS UTILISATIONS
申请人:KLEO PHARMACEUTICALS INC
公开号:WO2019136442A1
公开(公告)日:2019-07-11
Among other things, the present disclosure provides compounds, compositions thereof, and methods of using the same. In some embodiments, compounds of the present disclosure bind to Fc receptors, e.g., CD16a. In some embodiments, compounds of the present disclosure are useful for treating various conditions, disorders or diseases including cancer.
Abstract A highly efficient and commercially viable process for the synthesis of 6,7‐dihydroxy‐4‐anilinoquinazoline derivatives gefitinib (1) and erlotinib hydrochloride (2), used for the treatment of non‐small cell lung cancer (NSCLC) and pancreatic cancer, is reported. This new process has improved yields and avoids the unstable 4‐chloroquinazoline intermediate. The intermediates and final products