Hydrazinecarboxylic acid, ethyl ester → HCID 136596965, compound

Participants

Reaction Conditions

Reaction Steps

To a crude reaction mixture containing tert-butyl (1-(3-cyanoisoquinolin-1-yl)pyrrolidin-3-yl)carbamate (786 mg) was added ethyl hydrazinecarboxylate (242 mg, 2.323 mmol) in NMP (5 mL). The resulting suspension was heated at 175° C. overnight and was subsequently cooled, diluted with MeOH, and filtered. The crude product was purified using mass-triggered HPLC eluting with a gradient of 20-45% ACN in water (acid mode). The product-containing fractions were concentrated to give the title compound (117 mg, 17.0% over 2 steps). ESI-MS m/z [M+H]+ 297.5.

Provenance & Evidence