5-({4-[(2S)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}acetyl)-4-methyl-2-benzofuran-1(3H)-one → 5-(1-hydroxy-2-{4-[(2S)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}-1-methylethyl)-4-methyl-2-benzofuran-1(3H)-one

HRID 1187148Notes

Reaction equation

HRID 1187148 reaction equation
[OH:1][C@@H:2]([C:24]1[CH:33]=[CH:32][C:27]2[C:28](=[O:31])[O:29][CH2:30][C:26]=2[C:25]=1[CH3:34])[CH2:3][N:4]1[CH2:9][CH2:8][N:7]([CH2:10][C:11]([C:13]2[CH:22]=[CH:21][C:16]3[C:17](=[O:20])[O:18][CH2:19][C:15]=3[C:14]=2[CH3:23])=[O:12])[CH2:6][CH2:5]1.[CH3:35][Li]>C1COCC1>[OH:12][C:11]([C:13]1[CH:22]=[CH:21][C:16]2[C:17](=[O:20])[O:18][CH2:19][C:15]=2[C:14]=1[CH3:23])([CH3:35])[CH2:10][N:7]1[CH2:6][CH2:5][N:4]([CH2:3][C@@H:2]([OH:1])[C:24]2[CH:33]=[CH:32][C:27]3[C:28](=[O:31])[O:29][CH2:30][C:26]=3[C:25]=2[CH3:34])[CH2:9][CH2:8]1

Participants

4

Reactant 2

HCID 595687295-({4-[(2S)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}acetyl)-4-methyl-2-benzofuran-1(3H)-oneHCID 178418348HCID 178418348, compound

Product 1

HCID 595686665-(1-hydroxy-2-{4-[(2S)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}-1-methylethyl)-4-methyl-2-benzofuran-1(3H)-one

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 5-({4-[(2S)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}acetyl)-4-methyl-2-benzofuran-1(3H)-one (50 mg, 0.108 mmol) in THF (2 mL) in a 25 mL flask was added methyl lithium (2 mg, 0.1 mmol) at 0° C. The reaction mixture was stirred for 20 min.; LC analysis indicated formation of the desired product. The solution was concentrated to dryness, dissolved in MeOH (3.5 mL), filtered and was then purified by mass-directed HPLC to give 5-(1-hydroxy-2-{4-[(2S)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}-1-methylethyl)-4-methyl-2-benzofuran-1(3H)-one. LC-MS (IE, m/z): 481 [M+1]+.

Sources & evidence

ORD record
ord-694a7093d8cc472b9594ef9be46b7ac0
Source dataset
uspto-grants-2014_03
Patent number
US08673920B2

Reaction notes

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