aqueous15% sodium hydroxide (47 mL, over 20 min), and water (141 mL, over 30 min). The solutionis stirred for 30 min and the white precipitate is filtered. The filter cake is washed with ethylether (3 × 150 mL) and the organic filtrates are combined, dried with anhydrous sodiumsul...
操作方法0°C.,themixturewaswashedwithaqueoussodiumUS2001/6300353; 二bicarbonate,driedoveranhydrousmagnesiumsulfateand(2001);(B1) concentratedunderreducedpressure.PurificationoftheEnglish residuebysilicagelchromatography,usingn-hexane:ethyl acetate(8:1)~ethylacetateasaneluent,gave4-[(2R)-2-(3,4, 5,6-Te...
PURPOSE: To provide the method for economically preparing a storagestable peroxymonsulfate solution which is free of environmental pollution and marketable.BIRUGITSUTO BERUCHIYUUFURANKUAKUSERU DEYUUKAAFURIIDORITSUHI BITSUTONAAGERUTO RESURAA
艾沙康唑（Isavuconazonium ）用于治疗成人侵袭性曲霉菌和毛霉菌引起的罕见并且严重感染。艾沙康唑（Isavuconazonium ）不良反应有：恶心、呕吐、腹泻、头痛等等。艾沙康唑（Isavuconazonium ）分子结构式如下 :英文名称：Isavuconazonium sulfate 中文名称：艾沙康唑硫酸盐 本文主要对艾沙康唑（Isavuconazonium ）的合成...
an overhead stirrer, thermometer, and water bath,and stirring is begun at 300–350 rpm. A solution of 30–40mL of saturated aqueous sodium bicarbonate (0.4 mL/g of diacetonide) is added with stirring,followed by 130–140 g of sodiummetaperiodate (2.0 mol equiv), addedportionwise over 2–...
1a). The sulfate formation rate via the aqueous route is approximately several orders of magnitude lower than the observed formation rate6. Harris et al.30 also detected an unexpected rapid SO2 oxidation rate in a dust leachate, which contained a mixture of TMI (Fe, Ti, Mn, and Cr) ...
The separation was performed in a gradient elution mode composed by 1% formic aqueous solution (A) and acetonitrile (B). The flow rate was 1.0 mL min−1, and the injection volume 10 μL. The gradient program [time (min), %B] was: (0.00, 5), (5.00, 5), (10.00, 30), (15.00...
For the analysis of both PFCAs/PFSAs and PAPs, 2 mM ammonium acetate in Milli-Q:methanol (90:10, v:v) adjusted with 25% ammonia solution to pH 9 as aqueous eluent and methanol as organic eluent were used. The separation of FTOHs used 2 mM ammonium hydroxide also adjusted with 25% ...
Cbz-Cl (18.5 μl,0.155 mmol) in diethyl ether (0.2 ml) was dropped to a solution of (R)-1(36.4 mg, 0.129 mmol) in 10% aqueous Na2CO3(1.8 ml) at 0°C,and stirred for 5 h. The reaction mixture was acidified with 10% citric acid,extracted with CHCl3(10mlX3). The organic layer...
the clear solution will have reached a pH of7.5–8.5. The reaction mixture is extracted two times with 250mL of pentane, and the organic phase isextracted three times with 100 mL of saturated aqueous sodium bicarbonate solution. The combined aqueous layersare acidified to pH 1–1.5 by careful...