1-(diphenylmethyl)-1H-indole-2,3-dione → 3-hydroxy-3-(6-hydroxy-4-methyl-3,4-dihydro-2H-1,4-benzoxazin-7-yl)-1-[(2R)-tetrahydrofuran-2-ylmethyl]-1,3-dihydro-2H-indol-2-one

HRID 1965288Notes

Reaction equation

HRID 1965288 reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][O:5][C:4]2[CH:8]=[CH:9][C:10]([OH:12])=[CH:11][C:3]1=2.O1C2C(=CC=C(O)C=2)CCC1.[O:24]1[CH2:28][CH2:27][CH2:26][C@@H:25]1[CH2:29][N:30]1[C:38]2[C:33](=[CH:34][CH:35]=[CH:36][CH:37]=2)[C:32](=[O:39])[C:31]1=[O:40].C1(C(C2C=CC=CC=2)N2C3C(=CC=CC=3)C(=O)C2=O)C=CC=CC=1>>[OH:39][C:32]1([C:9]2[C:10]([OH:12])=[CH:11][C:3]3[N:2]([CH3:1])[CH2:7][CH2:6][O:5][C:4]=3[CH:8]=2)[C:33]2[C:38](=[CH:37][CH:36]=[CH:35][CH:34]=2)[N:30]([CH2:29][C@H:25]2[CH2:26][CH2:27][CH2:28][O:24]2)[C:31]1=[O:40]

Participants

5

Reactant 4

HCID 19692771-(diphenylmethyl)-1H-indole-2,3-dioneHCID 12236542Chroman-7-olHCID 220305304-methyl-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-olHCID 67358326(R)-1-((tetrahydrofuran-2-yl)methyl)indoline-2,3-dione

Product 1

HCID 685987153-hydroxy-3-(6-hydroxy-4-methyl-3,4-dihydro-2H-1,4-benzoxazin-7-yl)-1-[(2R)-tetrahydrofuran-2-ylmethyl]-1,3-dihydro-2H-indol-2-one

Procedure

Following the procedure as described in PREPARATION 14A, and making non-critical variations using 4-methyl-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-ol (McMurtrey, K. D., et al., J. Org. Chem. (1970), 35(12):4252-3) to replace chroman-7-ol, and 1-[(2R)-tetrahydrofuran-2-ylmethyl]-1H-indole-2,3-dione to replace 1-(diphenylmethyl)indoline-2,3-dione, 3-hydroxy-3-(6-hydroxy-4-methyl-3,4-dihydro-2H-1,4-benzoxazin-7-yl)-1-[(2R)-tetrahydrofuran-2-ylmethyl]-1,3-dihydro-2H-indol-2-one was obtained (92%) as a pale brown solid: 1H NMR (300 MHz, CDCl3) δ9.21 (d, J=13.6 Hz, 1H), 7.46 (d, J=7.2 Hz, 1H), 7.36 (dd, J=7.8, 7.8 Hz, 1H), 7.17 (dd, J=7.5, 7.2 Hz, 1H), 7.09 (d, J=7.8 Hz, 1H), 6.40 (s, 1H), 6.18 (s, 1H), 4.25-4.06 (m, 3H), 3.87-3.63 (m, 4H), 3.27-3.17 (m, 2H), 2.87 (s, 3H), 2.02-1.74 (m, 3H), 1.71-1.57 (m, 2H); 13C NMR (75 MHz, CDCl3) δ179.8, 179.7, 151.54, 151.52, 143.1, 143.0, 138.0, 137.4, 130.12, 130.10, 129.32, 129.29, 126.1, 126.0, 123.8, 114.8, 114.6, 113.1, 113.0, 110.4, 110.3, 103.5, 79.11, 79.06, 76.9, 76.7, 68.32, 68.26, 64.6, 48.9, 44.6, 38.5, 29.3, 29.1, 25.7, 25.6; MS (ES+) m/z 418.9 (M+23).

Sources & evidence

ORD record
ord-01e495106f3e4e868f193af133de30b9
Source dataset
uspto-grants-2013_04
Patent number
US08415370B2

Reaction notes

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