1-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-one → 1'-(diphenylmethyl)-5'-fluoro-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-2'(1'H)-one

HRID 2385149Notes

Reaction equation

HRID 2385149 reaction equation
[C:1]1([CH:7]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[N:8]2[C:16]3[C:11](=[CH:12][C:13]([F:17])=[CH:14][CH:15]=3)[CH:10]([C:18]3[C:19]([OH:27])=[CH:20][C:21]4[O:25][CH2:24][CH2:23][C:22]=4[CH:26]=3)[C:9]2=[O:28])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:35]1(C(C2C=CC=CC=2)N2C3C(=CC=CC=3)C(C3C=C(C)C(OC)=CC=3O)C2=O)C=CC=CC=1>>[C:29]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[N:8]2[C:16]3[C:11](=[CH:12][C:13]([F:17])=[CH:14][CH:15]=3)[C:10]3([CH2:35][O:27][C:19]4[CH:20]=[C:21]5[C:22](=[CH:26][C:18]3=4)[CH2:23][CH2:24][O:25]5)[C:9]2=[O:28])[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=1

Participants

3

Reactant 2

HCID 673563761-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-oneHCID 685985261-(diphenylmethyl)-5-fluoro-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1,3-dihydro-2H-indol-2-one

Product 1

HCID 593523241'-(diphenylmethyl)-5'-fluoro-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-2'(1'H)-one

Procedure

Following the procedure as described in EXAMPLE 2 and making non-critical variations using 1-(diphenylmethyl)-5-fluoro-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1,3-dihydro-2H-indol-2-one to replace 1-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-one, 1′-(diphenylmethyl)-5′-fluoro-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-2′(1′H)-one was obtained (71%) as a colorless solid: mp 228-229° C. (ethyl acetate/hexanes); 1H NMR (300 MHz, CDCl3) 7.39-7.25 (m, 10H), 7.06 (s, 1H), 6.90-6.87 (m, 1H), 6.72-6.65 (m, 1H), 6.42-6.38 (m, 3H), 4.83 (ABq, 2H), 4.53 (t, J=9.0 Hz, 2H), 3.02-2.97 (m, 2H); MS (ES+) m/z 464.1 (M+1).

Sources & evidence

ORD record
ord-0166d00e10904b53ab2edcbfec564934
Source dataset
uspto-grants-2012_09
Patent number
US08263606B2

Reaction notes

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