4-chloro-1-(diphenylmethyl)-3-hydroxy-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1,3-dihydro-2H-indol-2-one → 4-bromo-1-(diphenylmethyl)-3-(7-hydroxy-2,3-dihydro-1,4-benzodioxin-6-yl)-1,3-dihydro-2H-indol-2-one
Reaction equation
[Br:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4](O)([C:25]1[C:34]([OH:35])=[CH:33][C:28]3[O:29][CH2:30][CH2:31][O:32][C:27]=3[CH:26]=1)[C:5](=[O:24])[N:6]2[CH:11]([C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.ClC1C=CC=C2C=1C(O)(C1C(O)=CC3OCCC=3C=1)C(=O)N2C(C1C=CC=CC=1)C1C=CC=CC=1>>[Br:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]([C:25]1[C:34]([OH:35])=[CH:33][C:28]3[O:29][CH2:30][CH2:31][O:32][C:27]=3[CH:26]=1)[C:5](=[O:24])[N:6]2[CH:11]([C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1Participants
3
Reactant 2
Product 1
Procedure
Following the procedure as described in PREPARATION 4C, and making non-critical variations using 4-bromo-1-(diphenylmethyl)-3-hydroxy-3-(7-hydroxy-2,3-dihydro-1,4-benzodioxin-6-yl)-1,3-dihydro-2H-indol-2-one to replace 4-chloro-1-(diphenylmethyl)-3-hydroxy-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1,3-dihydro-2H-indol-2-one, 4-bromo-1-(diphenylmethyl)-3-(7-hydroxy-2,3-dihydro-1,4-benzodioxin-6-yl)-1,3-dihydro-2H-indol-2-one was obtained (86%): as a yellow solid: 1H NMR (300 MHz, DMSO-d6) δ9.05 (s, 1H), 7.42-7.28 (m, 10H), 6.98-6.87 (m, 3H), 6.68 (s, 1H), 6.33 (d, J=7.6 Hz, 1H), 6.16 (s, 1H), 4.22-4.16 (m, 4H).
Sources & evidence
- ORD record
- ord-a6afb50dc05a404486d94fe2b13c9fd6
- Source dataset
- uspto-grants-2012_09
- Patent number
- US08263606B2
Reaction notes
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