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!

239463-72-0

5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-7-carbonitrile-1H-indole synthesis

3synthesis methods
239463-85-5 Synthesis
5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-1H-indole-7-carbonitrile (2R,3R)-2,3-dihydroxybutanedioate

239463-85-5
238 suppliers
inquiry

5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-7-carbonitrile-1H-indole

239463-72-0
21 suppliers
inquiry

-

Yield:239463-72-0 99%

Reaction Conditions:

with sodium carbonate in water;ethyl acetate; for 2 h;Large scale;

Steps:

1.1; 2.1; 3.1; 4.1; 5.1; 6.1 First Step: Preparation of 5 - [(2R) -2-aminopropyl] -2,3-dihydro-1- [3- (benzoyloxy) propyl] -1H-indole-7-carbonitrile

1. 80L water was added 200L reactor, adding sodium carbonate 6.2Kg stirring to clarify;2. Add ethyl acetate 50L, stirring,10 Kg of 5 - [(2R) -2-aminopropyl] -2,3-dihydro-1- [3- (benzoyloxy) propyl] -1H-indole-7-carbonitrile tartarate was added, Stir for 2 hours;3. Let stand liquid, the aqueous phase was extracted once with 20 L of ethyl acetate, the combined organic phase;The organic phase was washed twice with 15 L of saturated brine and the organic phase was dried over anhydrous sodium sulfate for 4 hours.5. Suction filtration, desiccant was washed with ethyl acetate; the solvent was dried under reduced pressure to give an oil 7Kg,Is 5 - [(2R) -2-aminopropyl] -2,3-dihydro-1- [3- (benzoyloxy) propyl] -1H-indole-7-carbonitrile, 99%.

References:

CN106995399,2017,A Location in patent:Paragraph 0044-0049; 0079-0084; 0114-0119; 0149-0154

1338365-54-0 Synthesis
5-(2-Aminopropyl)-1-[3-(benzoyloxy)propyl]-2,3-dihydro-1H-indole-7-carbonitrile

1338365-54-0
24 suppliers
inquiry

5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-7-carbonitrile-1H-indole

239463-72-0
21 suppliers
inquiry

5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-7-carbonitrile-1H-indole Related Search:

甘南县| 开化县| 华池县| 九龙县| 嵩明县| 彭山县| 万安县| 吐鲁番市| 长宁县| 民丰县| 克拉玛依市| 清丰县| 图木舒克市| 通化市| 罗定市| 和硕县| 朝阳市| 南乐县| 原阳县| 尼玛县| 南江县| 长寿区| 唐海县| 南投县| 教育| 普兰店市| 五大连池市| 德保县| 兴化市| 汉中市| 婺源县| 长沙县| 通江县| 马关县| 宜丰县| 嘉黎县| 兴文县| 呼图壁县| 固始县| 南雄市| 宁陕县|