2-(Bromomethyl)tetrahydro-2H-pyran → 5-fluoro-6-methoxy-1'-[(2R)-tetrahydrofuran-2-ylmethyl]spiro[1-benzofuran-3,3'-indol]-2'(1'H)-one

HRID 2385246Notes

Reaction equation

HRID 2385246 reaction equation
[F:1][C:2]1[C:3]([O:20][CH3:21])=[CH:4][C:5]2[O:19][CH2:18][C:8]3([C:16]4[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=4)[NH:10][C:9]3=[O:17])[C:6]=2[CH:7]=1.CC1C=CC(S(O[CH2:33][C@H:34]2[CH2:38][CH2:37][CH2:36][O:35]2)(=O)=O)=CC=1.BrCC1CCCCO1>>[F:1][C:2]1[C:3]([O:20][CH3:21])=[CH:4][C:5]2[O:19][CH2:18][C:8]3([C:16]4[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=4)[N:10]([CH2:33][C@H:34]4[CH2:38][CH2:37][CH2:36][O:35]4)[C:9]3=[O:17])[C:6]=2[CH:7]=1

Participants

4

Reactant 3

HCID 1419172-(Bromomethyl)tetrahydro-2H-pyranHCID 7033050(R)-(tetrahydrofuran-2-yl)methyl 4-methylbenzenesulfonateHCID 461940485-fluoro-6-methoxyspiro[1-benzofuran-3,3'-indol]-2'(1'H)-one

Product 1

HCID 593521745-fluoro-6-methoxy-1'-[(2R)-tetrahydrofuran-2-ylmethyl]spiro[1-benzofuran-3,3'-indol]-2'(1'H)-one

Procedure

Following the procedure as described in EXAMPLE 4 and making non-critical variations using 5-fluoro-6-methoxyspiro[1-benzofuran-3,3′-indol]-2′(1′H)-one to replace 5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-2″(1′H)-one, and (R)-(tetrahydrofuran-2-yl)methyl 4-methylbenzenesulfonate to replace 2-(bromomethyl)tetrahydro-2H-pyran, 5-fluoro-6-methoxy-1′-[(2R)-tetrahydrofuran-2-ylmethyl]spiro[1-benzofuran-3,3′-indol]-2′(1′H)-one was obtained (42%) as a colorless solid: mp 106-116° C.; 1H NMR (300 MHz, CDCl3) δ7.28 (dd, J=7.6, 7.6 Hz, 1H), 7.14-6.98 (m, 3H), 6.58 (d, J=6.8 Hz, 1H), 6.49-6.40 (m, 1H), 4.92 (d, J=9.0 Hz, 1H), 4.66 (d, J=9.0 Hz, 1H), 4.31-4.19 (m, 1H), 3.98-3.64 (m, 7H), 2.09-1.80 (m, 3H), 1.76-1.61 (m, 1H); 13C NMR (75 MHz, CDCl3) δ177.7, 177.5, 157.1, 149.3, 149.1, 148.9, 146.1, 142.8, 131.9, 131.7, 129.0, 128.9, 123.7, 123.6, 123.3, 119.3, 119.2, 110.6, 110.5, 110.3, 110.2, 109.8, 109.6, 96.3, 80.6, 76.7, 68.2, 68.1, 58.0, 56.4, 44.6, 29.2, 29.0, 25.7, 25.5; MS (ES+) m/z 370.2 (M+1).

Sources & evidence

ORD record
ord-f1488513730f4683a0858c9615ecb7cd
Source dataset
uspto-grants-2012_09
Patent number
US08263606B2

Reaction notes

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