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 Dihydrochelerythrine
6880-91-7

Dihydrochelerythrine synthesis

12synthesis methods
-

Yield: 94%

Reaction Conditions:

with methanol;sodium tetrahydroborate at 20; for 0.5 h;Darkness;

Steps:

2.1 (1) Compound I-1: Dihydrochelerythrine
The compound chelerythrinechloride (120mg, 0.31mmols) was dissolved in 20mL methanol solution, sodium borohydride (100mg, 2.7mmols) was added,After stirring for 30 minutes at room temperature in the dark, stop the reaction and filter with suction.Wash the solid with ultrapure water and methanol, dry in vacuum,The white solid product dihydrochelerythrine (102 mg, yield: 94percent) was obtained.

References:

South China University of Technology;Tang Benzhong;Gao Meng;Ling Xia;Huang Letao CN111171039, 2020, A Location in patent:Paragraph 0072-0077

Dihydrochelerythrine Related Search:

津市市| 芦山县| 巧家县| 大埔县| 潞城市| 垫江县| 阿拉尔市| 潜山县| 色达县| 尤溪县| 永顺县| 翼城县| 基隆市| 富宁县| 太谷县| 中西区| 武义县| 麻阳| 玛沁县| 呼和浩特市| 威海市| 新巴尔虎右旗| 西丰县| 大竹县| 通山县| 磴口县| 体育| 万盛区| 屯留县| 铅山县| 观塘区| 广宗县| 罗城| 富平县| 台山市| 鸡东县| 嘉禾县| 阜康市| 内江市| 嵊泗县| 新营市|