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 5-Methyl-2'-C-methyl-uridine
119410-84-3

5-Methyl-2'-C-methyl-uridine synthesis

5synthesis methods
957535-53-4 Synthesis
(2R,3R,4R,5R)-5-((benzoyloxy)Methyl)-3-Methyl-2-(5-Methyl-2,4-dioxo-3,4-dihydropyriMidin-1(2H)-yl)tetrahydrofuran-3,4-diyl dibenzoate

957535-53-4
14 suppliers
inquiry

5-Methyl-2'-C-methyl-uridine

119410-84-3
26 suppliers
inquiry

-

Yield:119410-84-3 83.1%

Reaction Conditions:

with ammonia in methanol at 0 - 20; for 20 h;

Steps:

15.2

Compound 3m-3-Compound 3m-2 (1.6 g, 2.74 mmol) was dissolved in methanolic ammonia (120 mL, saturated at 0° C.). The mixture was stirred at RT for 20 hours. The solution was evaporated to dryness and the residue was purified on a silica gel column (DCM:MeOH=100:1 to 50:1) to give 3m-3 as a light yellow foam (620 mg, 83.1%). 1H NMR (MeOD, 400 MHz) δ 8.05 (s, 1H), 5.93 (s, 1H), 4.01-3.97 (m, 1H), 3.91-3.86 (m, 2H), 3.80-3.76 (m, 1H), 1.85 (s, 3H), 1.13 (s, 3H).

References:

US2012/71434,2012,A1 Location in patent:Page/Page column 111

5-Methyl-2'-C-methyl-uridine Related Search:

沂水县| 昂仁县| 建昌县| 隆安县| 蓬莱市| 法库县| 方正县| 个旧市| 郓城县| 砀山县| 梧州市| 忻州市| 奉新县| 琼结县| 长泰县| 泸水县| 临澧县| 富顺县| 资中县| 德庆县| 修武县| 宁阳县| 滨海县| 静乐县| 南康市| 达拉特旗| 常德市| 紫金县| 泸定县| 秭归县| 广昌县| 买车| 化州市| 双桥区| 东海县| 泾源县| 布拖县| 万荣县| 南城县| 广安市| 贵南县|