Continuously updated synthesis method about 3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine

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, 3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine, other downstream synthetic routes, hurry up and to see.

Adding a certain compound to certain chemical reactions, such as: 486460-21-3, name is 3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine, belongs to Pyrazines compound, 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 486460-21-3, 486460-21-3

Step 1: Preparation of 1-[4-(3-trifluoromethyl-5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl)-phenyl]-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid tert-butyl esterTo a solution of 1-(4-bromo-phenyl)-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid tert-butyl ester (Intermediate I, 400 mg, 1.18 mmol) in anhydrous toluene (5 mL) were added Pd2(dba)3 (5.4 mg, 0.006 mmol), BINAP (11.0 mg, 0.018 mmol), sodium tert-butoxide (227 mg, 2.34 mmol) and 3-trifluoromethyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine (prepared by the procedure as described in reference J. Med. Chem., 2005, 48, 141-151) (340 mg, 1.77 mmol) at r.t. and reaction mixture was refluxed for 6 h. Reaction mixture was then concentrated and the crude product was purified by column chromatography (silica gel, 6:4 EtOAc:Pet. ether) to afford the title compound as white solid (330 mg, 62%).ESIMS (m/z): 472.9 (M+23), 451.9 (M+2), 450.8 (M+1).

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, 3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; PANACEA BIOTEC LTD.; US2012/165320; (2012); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem