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CAS No. : | 14001-69-5 | MDL No. : | MFCD00474639 |
Formula : | C5H5N3O3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | ZPUHFIFABZPKHA-UHFFFAOYSA-N |
M.W : | 155.11 | Pubchem ID : | 352900 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | for 1 h; Reflux | Example 40Synthesis of 4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-N-(2-methoxy-5-pyrimidinyl)-6-(4-morpholinyl)-1,3,5-triazin-2-amineThe compound was synthesized according to Method A.To a solution of sodium methoxide (0.090 g of sodium) in MeOH (12 mL) was added 0.486 g (3.03 mmol) of 2-chloro-5-nitropyrimidine, and the mixture was heated under reflux for 1 hr. After cooling, the mixture was concentrated in vacuo, extracted with EtOAc, and washed with water. The aqueous layer was extracted with CHCl3 and the combined organic layers were dried (Na2SO4), and concentrated, to give 0.347 g (75percent yield) of 2-methoxy-5-nitropyrimidine as a yellow powder: 1H NMR (CDCl3) δ9.31 (s, 2H), 4.17 (s, 3H); LCMS (APCI+) m/z: 156 (MH+, 100percent).To 0.342 g (2.20 mmol) of the above nitro compound in MeOH (20 mL) was added 0.30 g of 10percent Pd/C and the mixture was stirred under hydrogen (25 in/Hg) for 18 hrs. The reaction mixture was filtered through celite, and concentrated, to give 0.274 g (100percent yield) of 5-amino-2-methoxypyrimidine as a colorless oil: 1H NMR (DMSO-d6) δ 8.05 (s, 2H), 3.94 (s, 3H); LCMS (APCI+) m/z: 126 (MH+, 100percent).To 0.274 g (2.19 mmol) of the above amino compound in THF (3 mL) was added 1.25 mL of NaHMDS (2 M solution in THF) and the mixture was stirred for 10 min. A solution of 0.31 g (0.78 mmol) of 1-[4-chloro-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole in THF (5 mL) was added and the resulting mixture was stirred for 90 min. The reaction mixture was neutralized with acetic acid, diluted with water, and extracted with EtOAc. The organic layer was washed with water and aq. NH3, dried, and concentrated. Recrystallization from EtOH/CH2Cl2 gave 0.098 g (26percent yield) of 4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-N-(2-methoxy-5-pyrimidinyl)-6-(4-morpholinyl)-1,3,5-triazin-2-amine: mp 255-258° C.; 1H NMR (DMSO-d6) 810.07 (s, 1H), 8.88-8.74 (m, 2H), 8.15-7.42 (m, 3H), 6.97 (d, J=8.0 Hz, 1H), 3.98 (s, 3H), 3.93 (s, 3H), 3.82-3.72 (m, 8H); Anal. Calcd. for C21H21F2N6O3: C, 52.0; H, 4.4; N, 26.0. Found: C, 52.1; H, 4.5; N, 26.0percent. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With hydrogen In methanol at 20℃; for 18 h; | Example 40Synthesis of 4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-N-(2-methoxy-5-pyrimidinyl)-6-(4-morpholinyl)-1,3,5-triazin-2-amineThe compound was synthesized according to Method A.To a solution of sodium methoxide (0.090 g of sodium) in MeOH (12 mL) was added 0.486 g (3.03 mmol) of 2-chloro-5-nitropyrimidine, and the mixture was heated under reflux for 1 hr. After cooling, the mixture was concentrated in vacuo, extracted with EtOAc, and washed with water. The aqueous layer was extracted with CHCl3 and the combined organic layers were dried (Na2SO4), and concentrated, to give 0.347 g (75percent yield) of 2-methoxy-5-nitropyrimidine as a yellow powder: 1H NMR (CDCl3) δ9.31 (s, 2H), 4.17 (s, 3H); LCMS (APCI+) m/z: 156 (MH+, 100percent).To 0.342 g (2.20 mmol) of the above nitro compound in MeOH (20 mL) was added 0.30 g of 10percent Pd/C and the mixture was stirred under hydrogen (25 in/Hg) for 18 hrs. The reaction mixture was filtered through celite, and concentrated, to give 0.274 g (100percent yield) of 5-amino-2-methoxypyrimidine as a colorless oil: 1H NMR (DMSO-d6) δ 8.05 (s, 2H), 3.94 (s, 3H); LCMS (APCI+) m/z: 126 (MH+, 100percent).To 0.274 g (2.19 mmol) of the above amino compound in THF (3 mL) was added 1.25 mL of NaHMDS (2 M solution in THF) and the mixture was stirred for 10 min. A solution of 0.31 g (0.78 mmol) of 1-[4-chloro-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole in THF (5 mL) was added and the resulting mixture was stirred for 90 min. The reaction mixture was neutralized with acetic acid, diluted with water, and extracted with EtOAc. The organic layer was washed with water and aq. NH3, dried, and concentrated. Recrystallization from EtOH/CH2Cl2 gave 0.098 g (26percent yield) of 4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-N-(2-methoxy-5-pyrimidinyl)-6-(4-morpholinyl)-1,3,5-triazin-2-amine: mp 255-258° C.; 1H NMR (DMSO-d6) 810.07 (s, 1H), 8.88-8.74 (m, 2H), 8.15-7.42 (m, 3H), 6.97 (d, J=8.0 Hz, 1H), 3.98 (s, 3H), 3.93 (s, 3H), 3.82-3.72 (m, 8H); Anal. Calcd. for C21H21F2N6O3: C, 52.0; H, 4.4; N, 26.0. Found: C, 52.1; H, 4.5; N, 26.0percent. |
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