4-Hydroxy-2-hydroxymethyl-2-methyl-2,3-dihydro-benzofuran-6-carboxylic acid tert-butyl ester → 4-[4-(Azetidine-1-carbonyl)-3-fluoro-phenoxy]-2-hydroxymethyl-2-methyl-2,3-dihydro-benzofuran-6-carboxylic acid tert-butyl ester
Reaction equation
COC(C1C=C(OC2C=CC(S(C)(=O)=O)=CC=2)C=C2OC(C)CC=12)=O.[C:26]([O:30][C:31]([C:33]1[CH:44]=[C:43]([OH:45])[C:36]2[CH2:37][C:38]([CH2:41][OH:42])([CH3:40])[O:39][C:35]=2[CH:34]=1)=[O:32])([CH3:29])([CH3:28])[CH3:27].[N:46]1([C:50]([C:52]2[CH:57]=[CH:56][C:55](F)=[CH:54][C:53]=2[F:59])=[O:51])[CH2:49][CH2:48][CH2:47]1>>[C:26]([O:30][C:31]([C:33]1[CH:44]=[C:43]([O:45][C:55]2[CH:56]=[CH:57][C:52]([C:50]([N:46]3[CH2:49][CH2:48][CH2:47]3)=[O:51])=[C:53]([F:59])[CH:54]=2)[C:36]2[CH2:37][C:38]([CH2:41][OH:42])([CH3:40])[O:39][C:35]=2[CH:34]=1)=[O:32])([CH3:27])([CH3:28])[CH3:29]Participants
4
Reactant 3
Product 1
Procedure
The title compound was prepared in a similar manner as described for Intermediate 1f, from 4-hydroxy-2-hydroxymethyl-2-methyl-2,3-dihydro-benzofuran-6-carboxylic acid tert-butyl ester (227c) and azetidin-1-yl-(2,4-difluoro-phenyl)-methanone. 1H NMR (400 MHz, CDCl3) δ 7.48-7.56 (m, 1 H) 7.24 (s, 1 H) 7.20 (d, J=1.26 Hz, 1 H) 6.77 (dd, J=8.59, 2.53 Hz, 1 H) 6.66 (dd, J=11.24, 2.40 Hz, 1 H) 4.21 (t, J=7.83 Hz, 2 H) 4.11-4.17 (m, 2 H) 3.65-3.74 (m, 1 H) 3.55-3.63 (m, 1 H) 3.13 (d, J=16.67 Hz, 1 H) 2.76 (d, J=16.67 Hz, 1 H) 2.34 (dt, J=15.60, 7.74 Hz, 2 H) 1.89-1.97 (m, 1 H) 1.56 (s, 9 H) 1.44 (s, 3 H); LCMS for C25H28FNO6 m/z 458.20 (M+H)+.
Sources & evidence
- ORD record
- ord-84d7b3ffce3b49a2a3038c2ddfb3891e
- Source dataset
- uspto-grants-2010_11
- Patent number
- US07842713B2
Reaction notes
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