Adding a certain compound to certain chemical reactions, such as: 41910-64-9, name is 4-Chloroindoline, belongs to indolines-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 41910-64-9, category: indolines-derivatives
Step 10b, Example 25b: (-)-2-[2-(4-Chloro-2,3-dihydroindol-1-yl)-2-oxoethyl]-6-(2-hydroxymethylmorpholin-4-yl)-3H-pyrimidin-4-one In a 25 ml round-bottomed flask, 71 mg of the sodium salt of [4-(2-hydroxymethylmorpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]acetic acid (example 25b, step 9b) and 38 mg of 4-chloro-2,3-dihydro-1H-indole are placed in 1 ml of dimethylformamide and 0.24 ml of pyridine, and then 57 mg of N-[3-(dimethylamino)propyl]-N?-ethylcarbodiimide hydrochloride are added. The reaction medium is stirred at ambient temperature for 20 h, then evaporated, water is added, and the resulting mixture is triturated. The solid formed is filtered off, and rinsed successively with water then with diisopropyl ether, with methylene chloride and then with pentane. The resulting solid is dried under vacuum for 2 h. (-)-2-[2-(4-Chloro-2,3-dihydroindol-1-yl)-2-oxoethyl]-6-(2-hydroxymethylmorpholin-4-yl)-3H-pyrimidin-4-one (62 mg) is isolated in the form of a pulverulent solid (yield=63%).Mass Spectrometry:The spectra were obtained on a Waters UPLC-SQD apparatusIonization: positive and/or negative mode electrospray (ES+/-)Chromatographic Conditions: Column: Acquity BEH C18-1.7 mum-2.1¡Á50 mm Solvents: A: H2O (0.1% formic acid) B: CH3CN (0.1% formic acid) Column temperature: 50 C. Flow rate: 1 ml/min Gradient (2 min): from 5 to 50% of B in 0.8 min; 1.2 min: 100% of B; 1.85 min: 100% of B; 1.95: 5% of BAnalytical Results:Retention time Tr (min)=0.66; [M+H]+: m/z 405; [M-H]-: m/z 4031H NMR spectrum (400 MHz): 2.58 (partially masked m, 1H); 2.83 (m, 1H); 3.19 (t, J=8.7 Hz, 2H); 3.27 to 3.52 (partially masked m, 4H); 3.77 (s, 2H); 3.82 to 3.96 (m, 2H); 4.12 (m, 1H); 4.21 (t, J=8.7 Hz, 2H); 4.71 (t, J=6.1 Hz, 1H); 5.20 (s, 1H); 7.09 (d, J=7.9 Hz, 1H); 7.22 (t, J=7.9 Hz, 1H); 7.97 (d, J=7.9 Hz, 1H); 11.61 (broad s, 1H)Optical rotation: alphaD=-22 C.=0.351 mg/0.5 ml in DMSO
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Chloroindoline, and friends who are interested can also refer to it.
Reference:
Patent; SANOFI; Brollo, Maurice; Carry, Jean-Christophe; Certal, Victor; Didier, Eric; Doerflinger, Gilles; EL Ahmad, Youssef; Filoche-Romme, Bruno; Halley, Frank; Karlsson, Karl Andreas; Schio, Laurent; Thompson, Fabienne; US2013/274253; (2013); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem