一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List O-Desmorpholinopropyl Gefitinib
184475-71-6

O-Desmorpholinopropyl Gefitinib synthesis

8synthesis methods
-

Yield:184475-71-6 95.3%

Reaction Conditions:

with sodium methoxide in methanol; for 3 h;Reflux;

Steps:

1.5 5) Preparation of 4- (3-chloro-4-fluoro) phenylamino-6-hydroxy-7-methoxyquinazoline (6)

To the reaction vessel was added 4- (3-chloro-4-fluoro) phenylamino-6-carbethoxy-7-methoxyquinazoline (3.61 g,10mmol), dissolved in 30mL methanol, added sodium methoxide (2.7g, 50mmol), stirred evenly, heated to reflux, reaction 3hour. After completion of the reaction, the solid was removed by filtration, and the solid was cooled to give 4- (3-chloro-4-fluoro) phenylamino-6-hydroxy-7-methoxy Ylquinazoline was obtained in a yield of 95.3%.

References:

CN106045980,2016,A Location in patent:Paragraph 0027; 0028; 0029

O-Desmorpholinopropyl Gefitinib Related Search:

蒙自县| 邹城市| 万安县| 县级市| 博野县| 宁蒗| 西畴县| 湖口县| 长治县| 蓝山县| 昌都县| 琼海市| 包头市| 昆山市| 黄骅市| 兴宁市| 牙克石市| 久治县| 青龙| 登封市| 华宁县| 德庆县| 乐山市| 鹤山市| 安化县| 南川市| 尼勒克县| 怀集县| 外汇| 钟山县| 乐都县| 中江县| 连城县| 广南县| 康乐县| 上蔡县| 苍梧县| 宁波市| 陵水| 南城县| 定日县|