849020-87-7 | Pyridine-derivatives

3 Sep 2021 News Share a compound : 849020-87-7

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,849020-87-7, its application will become more common.

Related Products of 849020-87-7 ,Some common heterocyclic compound, 849020-87-7, molecular formula is C7H4F3NO3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.

Diethyl chlorophosphate (0.186 ml, 1.285 mmol) was added to a stirring solution of 6-hydroxy-4-(trifluoromethyl)nicotinic acid (0.266 g, 1.285 mmol) in pyridine (3 ml) at room temperature. After stirring for lh the solution of activated acid was added to a stirring solution of 4-(3,4-dimethylpiperazin-1-yl)-6-fluoro-3′- (mo holinomethyl)-[l, -biphenyl]-3-amine (0.128 g, 0.321 mmol) also in pyridine (3 ml) at room temperature. The reaction was heated to 75 C overnight. LCMS indicated the presence of the desired product along with the excess nicotinic acid. The reaction was concentrated onto celite and purified by RP flash on the Biotage [5-95% MeCN/water] to afford 135 mg of crude product that was not of sufficient purity by NMR and LCMS. The mixture was loaded onto celite and purified by silica gel chromatography [1-25% MeOH/DCM + 1% NH40H] to afford the title compound (106 mg, 53.4 % yield) as a colorless solid after lyophilization. 11H NMR (500 MHz, DMSO-d6) delta 9.52 (s, 1H), 7.94 (s, 1H), 7.75 (d, J=8.44 Hz, 1H), 7.29-7.47 (m, 4H), 7.06 (d, J=12.47 Hz, 1H), 6.81 (s, 1H), 3.58 (t, J=4.40 Hz, 4H), 3.53 (s, 2H), 2.99- 3.09 (m, 2H), 2.80-2.87 (m, 1H), 2.74-2.80 (m, 1H), 2.32-2.46 (m, 6H), 2.23-2.27 (m, 1H), 0.99 (d, J=6.24 Hz, 3H); LCMS [M+H]+ 574 g/mol.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,849020-87-7, its application will become more common.

Reference:
Patent; ONTARIO INSTITUTE FOR CANCER RESEARCH (OICR); AL-AWAR, Rima; ZEPEDA-VELAZQUEZ, Carlos Armando; PODA, Gennady; ISAAC, Methvin; UEHLING, David; WILSON, Brian; JOSEPH, Babu; LIU, Yong; SUBRAMANIAN, Pandiaraju; MAMAI, Ahmed; PRAKESCH, Michael; STILLE, Julia Kathleen; (1053 pag.)WO2017/147700; (2017); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Analyzing the synthesis route of 6-Hydroxy-4-(trifluoromethyl)nicotinic acid

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 849020-87-7, 6-Hydroxy-4-(trifluoromethyl)nicotinic acid, other downstream synthetic routes, hurry up and to see.

Reference of 849020-87-7, Adding some certain compound to certain chemical reactions, such as: 849020-87-7, name is 6-Hydroxy-4-(trifluoromethyl)nicotinic acid,molecular formula is C7H4F3NO3, 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 849020-87-7.

In a 10 niL microwave vial to a suspension of 6-hydroxy-4-(trifluoromethyl)nicotinic acid (1048 mg, 5.06 mmol) in pyridine, anhydrous (6139 mu, 76 mmol) was added slowly diethyl chlorophosphate (749 mu, 5.19 mmol) at RT in an atmosphere of nitrogen. The reaction mixture was stirred at rt for 2 h. The suspension turned into a solution and then into a suspension again. To this, 5-bromo- 4-fluoro-2-((3S,5R)-3,4,5-trimethylpiperazin-1-yl)aniline (400 mg, 1.265 mmol) was added and the reaction was heated at 70 C for 3 h. After completion, pyridine was removed in vacuo and the residue partitioned between dichloromethane (3 mL) and saturated sodium bicarbonate solution (3 mL). The suspension was stirred for 10 min. The organic layer was separated, and dried over anhydrous Na2SC>4. The solvent was evaporated in vacuo yielding the crude product which was purified by flash column chromatography on silica gel (0-100%, 89% CH2C12, 10% MeOH, 1% NH4Ac/CH2Cl2) to afford the title compound (192 mg, 30%). 11H NMR (500 MHz, MeOD) delta 8.10 (d, J = 7.4 Hz, 1H), 7.92 (s, 1H), 7.09 (d, J = 10.1 Hz, 1H), 6.90 (s, 1H), 3.00 (d, J = 11.0 Hz, 2H), 2.57 (t, J = 11.0 Hz, 2H), 2.54 – 2.49 (m, 2H), 2.35 (s, 3H), 1.14 (d, J= 6.0 Hz, 6H); LCMS [M+l]+ = 505.00.

Sources of common compounds: 6-Hydroxy-4-(trifluoromethyl)nicotinic acid

The chemical industry reduces the impact on the environment during synthesis 849020-87-7, I believe this compound will play a more active role in future production and life.

Reference of 849020-87-7, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.849020-87-7, name is 6-Hydroxy-4-(trifluoromethyl)nicotinic acid, molecular formula is C7H4F3NO3, molecular weight is 207.1068, as common compound, the synthetic route is as follows.

Diethyl chlorophosphate (0.045 ml, 0.312 mmol) was added to a solution of 6-hydroxy-4-(trifluoromethyl)nicotinic acid (0.065 g, 0.312 mmol) in pyridine, anhydrous (0.945 ml, 11.70 mmol) at room temperature under nitrogen. After stirring for lh, this solution was added to a vial containing 6-fluoro-4-(4- methylpiperazin-1-yl)-3′-(mo holinomethyl)-[l, -biphenyl]-3-amine (step 3 from (a): 0.030 g, 0.078 mmol) under nitrogen and the reaction was heated to 70C for 3 hours. The pyridine was removed under reduced pressure and LCMS of the residue (dissolved in DCM, MeCN and MeOH) indicated complete conversion to the desired product. The mixture was loaded onto celite purified by flash chromatography [0.5-10% DCM/MeOH + 1% NH4OH] to methylpiperazin-1-yl)-3′-(mo holinomethyl)-[l,Gamma- biphenyl]-3-yl)-6-oxo-4-(trifluoromethyl)-l,6-dihydropyridine-3-carboxarnide (0.024 g, 0.042 mmol, 53.6% yield) as a clear film. NMR (500 MHz, DMSO-d6) delta = 9.53 (s, 1H), 7.94 (s, 1H), 7.76 (d, J=8.4 Hz, 1H), 7.46 – 7.42 (m, 2H), 7.40 – 7.38 (m, 1H), 7.32 (d, J=7.3 Hz, 1H), 7.08 (d, J=12.5 Hz, 1H), 6.81 (s, 1H), 3.60 – 3.57 (m, 4H), 3.53 (s, 2H), 2.93 (br. s., 4H), 2.38 (br. s., 4H), 2.24 (s, 3H); LCMS [M+H]+ 574 g/mol.

The chemical industry reduces the impact on the environment during synthesis 849020-87-7, I believe this compound will play a more active role in future production and life.