HCID 86643706, compound → HCID 67352368, compound

Participants

Reaction Steps

(S)-4-Tert-butoxycarbonyl-1-[3-(9-ethylamino-6-oxo-2,3,3a,4-tetrahydro-1H,6H-5,8,10,10b-tetraazabenzo[e]azulen-5-yl)phenyl]piperazine-1-oxide (0.338 g, 0.645 mmol) obtained in Step 2 was dissolved in ethanol (10 mL), and the mixture was stirred for 1.5 hours under a stream of hydrogen gas after adding 10% palladium-on-carbon (137 mg, 0.0646 mmol). The mixture was filtered through sellite, and the filtrate was concentrated to give (S)-5-[3-(4-tert-butoxycarbonylpiperazine-1-yl)phenyl]-9-ethylamino-1,2,3,3a,4,5-hexahydro-5,8,10,10b-tetraazabenzo[e]azulen-6-one (0.235 g, 72%).

Provenance & Evidence