HCID 86640248, compound → HCID 68706147, compound

Participants

Reaction Steps

1-Methyl-7-trityl-1,4,5,7-tetrahydro-1,6,7-triaza-as-indacene-2-carboxylic acid methyl ester XVIII (0.74 mmol) was suspended in 3% HCl in MeOH (7 mL) and the mixture was stirred at rt for 4 h. After solvent removal the crude material was chromatographed on silica gel (eluant: AcOEt/hexane 1:1, then AcOEt and AcOEt/MeOH 4:1). Obtained the title compound in 80% yield. ESI (+) MS: m/z 232 (MH+). 1H NMR: 2.80 (m, 2H), 2.94 (m, 2H), 3.79 (s, 3H), 3.88 (s, 3H), 6.82 (s, 1H), 7.76 (s, 1H).

Provenance & Evidence