Electric Literature of 138624-97-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 138624-97-2, name is 1-Benzyl-1H-1,2,4-triazole-3-carboxylic acid belongs to Triazoles compound, it is a common compound, a new synthetic route is introduced below.
A mixture of 1-benzyl-1,2,4-triazole-3-carboxylic acid (16 mg, 0.08 mmol), (6S)-6-amino-2,4-dimethyl-7,8-dihydro-6H-pyrazolo[4,3-b]azepin-5-one (15 mg, 0.08 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimidehydrochloride (15 mg, 0.08 mmol) and 1-hydroxybenzotriazole (10 mg, 0.08 mmol) in N,N-dimethylformamide (5 mL) was stirred at 30 C. for 2 h. The mixture was concentrated under reduce pressure. The residue was purified by RP-HPLC (acetonitrile 22-50%/0.05% hydrochloride acid in water) to afford 1-benzyl-N-[(6S)-2,4-dimethyl-5-oxo-7,8-dihydro-6H-pyrazolo[4,3-b]azepin-6-yl]-1,2,4-triazole-3-carboxamide (16.3 mg, 56%) as a white solid. 1H NMR (400 MHz, CD3OD) delta 8.81 (s, 1H), 7.84 (s, 1H), 7.38-7.33 (m, 5H), 5.51 (s, 2H), 4.73-4.68 (m, 1H), 3.93 (s, 3H), 3.31 (s, 3H), 3.00-2.90 (m, 2H), 2.50-2.45 (m, 1H), 2.27-2.22 (m, 1H). LCMS RT=1.088 min, m/z=380.2 [M+H]+. LCMS (5 to 95% acetonitrile in water+0.03% trifluoroacetic acid over 1.5 mins) retention time 1.088 min, ESI+ found [M+H]=380.2.
The synthetic route of 1-Benzyl-1H-1,2,4-triazole-3-carboxylic acid has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Genentech, Inc.; Patel, Snahel; Hamilton, Gregory; (73 pag.)US2018/170927; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics