Tag: M.W:100-200

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1569-16-0,2-Methyl[1,8]-Naphthyridine,as a common compound, the synthetic route is as follows.,1569-16-0

The compound was prepared according to the procedure as described in WO 0033838. To a solution of 2-methyl-1,8-naphthyridine (2 g, 13.9 mmol) in ethanol (35 ml) was added 10percent Pd/C, and the reaction mixture was stirred under H2 (10 psi) for 24 hours. Palladium was filtered out through celite and washed with excess ethanol. The filtrate was concentrated under vacuum to give 1.7 g (83percent) pink solid. NMR (CD3OD) delta 1.82-1.87 (m, 2H), 2.22 (s, 3H), 2.65-2.76 (m, 2H), 3.33-3.36 (m, 2H), 6.32 (d,1H, J=7.25 Hz), 7.07 (d, 1H, J=7.38 Hz). Mass spectrometry: 149.15 (M+H)+.

The synthetic route of 1569-16-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Nagarajan, Srinivasan R.; Khanna, Ish Kumar; Clare, Michael; Gasiecki, Alan; Rogers, Thomas; Chen, Barbara; Russell, Mark; Lu, Hwang-Fun; Yi, Yu; Huff, Renee M.; Desai, Bipinchandra N.; Devadas, Balekudru; Parikh, Mihir D.; Penning, Thomas; US2004/92538; (2004); A1;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.54920-82-0,1,7-Naphthyridin-2(1H)-one,as a common compound, the synthetic route is as follows.,54920-82-0

To a mixture of 1,7-naphthyridin-2(1H)-one (10 g, 68 mmol) in DMF (100 mL), BnBr (12.8 g, 75 mmol) was added. The mixture was stirred at 80 ¡ãC for 12 h. After cooling down, the reaction mixture was diluted with DCM/PE (100 mL/200 mL). The precipitate was filtered and dried to give 7-benzyl-2-oxo- 1 ,2-dthydro- 1 ,7-naphthyridin-7-ium Bromide (13.1 g, yield: 61percent) as a yellow solid. ESI-MS (M+H): 237.1.

The synthetic route of 54920-82-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; BIOGEN MA INC.; CAPACCI, Andrew, George; DECHANTSREITER, Michael; ENYEDY, Istvan; JONES, John, H.; LIN, Edward, Yin-Shiang; LUCAS, Brian, Stuart; MA, Bin; (273 pag.)WO2018/140876; (2018); A1;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.15936-10-4,2-Chloro-1,8-naphthyridine,as a common compound, the synthetic route is as follows.,15936-10-4

Example 82; 5-Methvl-6- (1, 8-naphthyridin-2-yl)-N [4-trifluoromethvl phenvl] pyrimidin-4-amine; To a mixture of Description 95 (200 mg, 0.7 mmol), Description 92 (115 mg, 0.7 mmol) and Pd (PPh3) 4 (80 mg, 0.07 mmol) in anhydrous 1, 4-dioxane (4 ml) was added hexamethylditin (0. 145 ml, 0.7 mmol). The mixture was heated at 190C for 15 min in a microwave reactor (Personal Chemistry-Smith synthesizer). The cooled reaction mixture was loaded directly onto a silica gel chromatography column and eluted with 2% MeOH + 0. 5% NH40H in DCM. The product was further purified by mass directed HPLC to give the title compound as a white solid (50 mg, 18%). 1H NMR (500 MHz, CDCl3) 2.70 (3 H, s), 6.94 (1 H, s), 7. 58 (1 H, dd, J8.1 and 4.2), 7.64 (2 H, d, J8.6), 7.84 (2 H, d, J8.6), 8. 25 (1 H, d, J8. 5), 8.29 (1 H, dd, J8. 1 and 1. 9), 8.38 (1 H, d, J 8. 4), 8. 81 (1 H, s), 9.20 (1 H, dd, J4.2 and 1.9) ; mlz (ES+) 382 (M+H+).

15936-10-4 2-Chloro-1,8-naphthyridine 5152838, anaphthyridine compound, is more and more widely used in various fields.

Reference£º
Patent; MERCK SHARP & DOHME LIMITED; WO2005/47279; (2005); A1;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem

54920-82-0, 1,7-Naphthyridin-2(1H)-one is a naphthyridine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,54920-82-0

As the paragraph descriping shows that 54920-82-0 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.249889-68-7,8-Chloro-2-methoxy-1,5-naphthyridine,as a common compound, the synthetic route is as follows., Author tianliPosted on September 25, 2020Categories 249889-68-7, naphthyridineTags M.W:100-200

10261-82-2, 1,5-Naphthyridin-2(1H)-one is a naphthyridine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,10261-82-2

A 250 mL round bottomed flask charged with 1,5-naphthyridin-2(1H)-one (2.98 g, 20.37 mmol) and phosphorus oxychloride (40 ml, 437 mmol) was heated at 100 C. for 3 h. The reaction was cooled to room temperature and excess POCl3 was removed in vacuo. The re

10261-82-2 1,5-Naphthyridin-2(1H)-one 589680, anaphthyridine compound, is more and more widely used in various fields.

254-79-5, 1,5-Naphthyridine is a naphthyridine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,254-79-5

1,5-naphthyridine (111.6 g, 0.85 mol) was dissolved in acetic acid (1000 mL), sodium acetate (140.9 g, 1.72 mol) was added and heated to 80 C.A solution of bromine (153 g, 0.96 mol) in 150 mL was added dropwise thereto, maintaining the temperature of the

As the paragraph descriping shows that 254-79-5 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.215523-34-5,1,8-Naphthyridine-2-carboxylic acid,as a common compound, the synthetic route is as follows.

To a suspension of 1,8-naphthyridine-2-carboxylic acid (2?g, 0.011?mol) in dry benzene (50?mL), was added oxalyl chloride (1.4?mL, 0.017?mol) drop wisely at 0?C. Then few drops of DMF were added and the reaction began immediately. It was then slowly broug

215523-34-5, The synthetic route of 215523-34-5 has been constantly updated, and we look forward to future research findings.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.254-60-4,1,8-Diazanaphthalene,as a common compound, the synthetic route is as follows.

A. A solution of [1,8]naphthyridine (0.2 mmol) and potassium amide (0.8 mmol) in liquid ammonia (20 mL) is stirred at -40 C. for 3 h. The solution is concentrated. Residue is partitioned between EtOAc and water. EtOAc layer is separated and washed successively with water and brine. EtOAc layer is dried over sodium sulfate, filtered and concentrated to give [1,8]naphthyridin-2-ylamine which is used as is for the next step., 254-60-4

The synthetic route of 254-60-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Calvo, Raul R.; Cheung, Wing S.; Player, Mark R.; US2006/116368; (2006); A1;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.249889-68-7,8-Chloro-2-methoxy-1,5-naphthyridine,as a common compound, the synthetic route is as follows.,249889-68-7

Example 81 : (S)-3-(2,3-dihydro-benzo [ 1 ,4] dioxin-6-yl)-5- { [2-(6-methoxy- [l,5]naphthyridin-4-ylamino)-ethylamino]-methyl}-oxazolidin-2-one:; 81. i. N1 -(6-methoxy-fl, 5]naphthyridin-4-yl)-ethane-l,2-diamine:; A mixture of 8-chloro-2-methoxy-l,5-naphthyridine (1.71 g, 8.81 mmol) and ethylenediamine (1.18 mL, 2 eq.) was heated slowly to 800C over 1 h and subsequently up to 1000C for 2 h. After cooling to rt, the yellow solution was taken in DCM and successively washed with NaHCO3. The aq. layer was back extracted with DCM (3 times) and the combined org. layers were concentrated to afford the title intermediate as a pale yellow oil (0.98 g, 51% yield). MS (ESI, m/z): 219.4 [M+H+].

249889-68-7 8-Chloro-2-methoxy-1,5-naphthyridine 22244395, anaphthyridine compound, is more and more widely used in various fields.

Reference£º
Patent; ACTELION PHARMACEUTICALS LTD; WO2008/126024; (2008); A2;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem