A series of erlotinib analogues that have structural modification at 6,7-alkoxyl positions is efficiently synthesized. The in vitro anti-tumor activity of synthesized compounds is studied in two non-small cell lung cancer (NSCLC) cell lines (A549 and H1975). Among the synthesized compounds, the iodo compound 6 (ETN-6) exhibits higher anti-cancer activity compared to erlotinib. An efficient method is
4-anilinoquinazoline derivative and albumin conjugates thereof
申请人:National Chiao Tung University
公开号:US10251886B1
公开(公告)日:2019-04-09
a pharmaceutical composition for preventing, treating, or ameliorating one or more symptoms of a malignant tumor associated with EGFR mutation and/or K-RAS mutation is provided. The pharmaceutical composition includes a 4-anilinoquinazoline derivative having a formula (I)
where A is iodine when m is 1 and n is zero, or A is albumin when m is an integral ranging from 1 to 7 and n is 1.
[EN] PROCESS FOR PREPARING QUINAZOLINE DERIVATIVE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉ DE QUINAZOLINE
申请人:SCINOPHARM CHANGSHU PHARMACEUTICALS LTD
公开号:WO2015188318A1
公开(公告)日:2015-12-17
A concise, efficient and cost-and time-saving process for the preparation of a quinazoline derivative of formula (A) given below: which is an intermediate for making gefitinib or gefitinib itself, comprising reacting a compound of formula (B): with 3-chloro-4-fluoroaniline (VI) in the presence of a N,N-dialkyl formamide acetal, a Bronsted acid catalyst, and a solvent in a one-pot reaction.
Compounds of formula I, ##STR1## wherein R.sup.1 represents C.sub.1-4 alkoxy optionally substituted by one or more fluorine atoms; R.sup.2 and R.sup.3 independently represent H or C.sub.1-6 alkoxy (which is optionally substituted); R.sup.4 represents a 4-, 5-, 6- or 7-membered heterocyclic ring, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent, or represents a cyclic group of formula Ia, ##STR2## or represents a chain of formula Ib, ##STR3## and pharmaceutically acceptable salts thereof, are useful in therapy, in particular in the treatment of benign prostatic hyperplasia.
A concise, efficient and cost- and time-saving process for the preparation of a quinazoline derivative of formula A given below:
which is an intermediate for making gefitinib or gefitinib itself, comprising reacting a compound of Formula B:
with 3-chloro-4-fluoroaniline (VI) in the presence of a N,N-dialkyl formamide acetal, a Bronsted acid catalyst, and a solvent in a one-pot reaction.