HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1966674Generated: October 26, 2026
L-Proline → 5-[2-(5-Bromo-2-1,2,4-triazol-1-yl-phenyl)-1-tert-butyl-1H-benzimidazol-5-yl]-pyrimidin-2-ylamine
https://huagongshe.com/reaction/1966674
Participants
| Role | Name | HCID | Charge |
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| Reactant | L-Proline | HCID 145742 | — |
| Reactant | 4-(2-amino-pyrimidin-5-yl)-N1-tert-butyl-benzene-1,2-diamine | HCID 58541899 | — |
| Reactant | 5-bromo-2-(1H-1,2,4-triazol-1-yl)benzaldehyde | HCID 58541983 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 5-[2-(5-Bromo-2-1,2,4-triazol-1-yl-phenyl)-1-tert-butyl-1H-benzimidazol-5-yl]-pyrimidin-2-ylamine | HCID 58541895 | 31% |
Reaction Steps
To a solution of 4-(2-amino-pyrimidin-5-yl)-N1-tert-butyl-benzene-1,2-diamine (100 mg, 0.39 mmol) in MeOH (5 mL) are added 5-bromo-2-1,2,4-triazol-1-yl-benzaldehyde (refer to example 4 step 1) (147 mg, 0.58 mmol) and L-proline (4 mg, 0.04 mmol) at room temperature. The solution is heated to 60° C. for 24 hours and then cooled down and is concentrated under reduced pressure. The residue is purified by silica gel flash column chromatography eluting with 10% MeOH in CH2Cl2 to afford the title compound (59 mg, 31%) as a white foam. LCMS (ESMS): m/z 489.20 (M+)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08420655B2 |
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| Source dataset | uspto-grants-2013_04 |
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| ORD ID | ord-7f9e07f1c441499aa6349c12dead3af7 |
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| Source note | uspto-grants-2013_04 |
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