HCID 59352422, compound → HCID 59352238, compound

Participants

Reaction Steps

Following the procedure as described in EXAMPLE 13.1 and making non-critical variations using 2-[(2′-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-1′(2′H)-yl)methyl]-1,3-oxazole-4-carboxylic acid to replace 5-[(2′-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3-indol]-1′(2′H)-yl)methyl]furan-2-carboxylic acid, N,N-dimethyl-2-[(2′-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-1′(2′H)-yl)methyl]-1,3-oxazole-4-carboxamide was obtained (3.0%) as a colorless solid: 1H NMR (300 MHz, CDCl3) δ8.09 (s, 1H), 7.27-6.86 (m, 4H), 6.50 (s, 1H), 6.40 (s, 1H), 5.08 (ABq, 2H), 4.82 (ABq, 2H), 4.52 (t, J=8.6 Hz, 2H), 3.29 (s, 3H), 3.06 (s, 3H), 2.97 (t, J=8.6 Hz, 2H); MS (ES+) m/z 431.8 (M+1).

Provenance & Evidence