tert-Butyl 1-(4-(6-(4-chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl)-2-methoxyphenoxy)-2-methylpropan-2-yl oxalate → 2-(1-(4-(6-(4-Chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl)-2-methoxyphenoxy)-2-methylpropan-2-yloxy)-2-oxoacetic Acid

HRID 1916371Notes

Reaction equation

HRID 1916371 reaction equation
[C:1]([O:36]C(C)(C)C)(=[O:35])[C:2]([O:4][C:5]([CH3:34])([CH3:33])[CH2:6][O:7][C:8]1[CH:13]=[CH:12][C:11]([N:14]2[C:19](=[O:20])[C:18]3[S:21][C:22]([C:24]4[CH:29]=[CH:28][C:27]([Cl:30])=[CH:26][CH:25]=4)=[CH:23][C:17]=3[N:16]=[CH:15]2)=[CH:10][C:9]=1[O:31][CH3:32])=[O:3]>C(O)(C(F)(F)F)=O.C(Cl)Cl>[Cl:30][C:27]1[CH:28]=[CH:29][C:24]([C:22]2[S:21][C:18]3[C:19](=[O:20])[N:14]([C:11]4[CH:12]=[CH:13][C:8]([O:7][CH2:6][C:5]([CH3:34])([O:4][C:2](=[O:3])[C:1]([OH:36])=[O:35])[CH3:33])=[C:9]([O:31][CH3:32])[CH:10]=4)[CH:15]=[N:16][C:17]=3[CH:23]=2)=[CH:25][CH:26]=1

Participants

4

Reactant 1

HCID 58858061tert-Butyl 1-(4-(6-(4-chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl)-2-methoxyphenoxy)-2-methylpropan-2-yl oxalate

Product 1

HCID 588580952-(1-(4-(6-(4-Chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl)-2-methoxyphenoxy)-2-methylpropan-2-yloxy)-2-oxoacetic AcidYield 91%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 6422Trifluoroacetic acidSolvent

Procedure

A solution of tert-butyl 1-(4-(6-(4-chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl)-2-methoxyphenoxy)-2-methylpropan-2-yl oxalate (124 mg; 0.212 mmol) in 0.5 mL of TFA and 1 mL of CH2Cl2 was stirred at rt for 1.5 h. The solution was concentrated under reduced pressure to afford 102 mg (91%) of the title compound as a white foam. 1H NMR (CDCl3) δ 1.70 (s, 6H), 3.86 (s, 3H), 4.30 (s, 2H), 6.91-6.94 (m, 2H), 7.09 (d, J=8.80 Hz, 1H), 7.45 (d, J=8.79 Hz, 2H), 7.66-7.69 (m, 3H), 8.74 (s, 1H); 13C NMR (CDCl3) δ 22.76, 56.26, 74.60, 85.93, 111.25, 116.62, 119.30, 122.64, 127.93, 129.47, 129.70, 130.35, 136.86, 148.88, 151.00, 151.55, 155.17, 155.98, 157.04, 158.59, 159.55, 159.95; HPLC (Method #1) 4.13 min retention time, (99%); MS (ES): m/z 529 [M+H]+.

Workup

  1. concentrationThe solution was concentrated under reduced pressure

Sources & evidence

ORD record
ord-7aa24a08fa5f4a5eafa2b8bc750a8558
Source dataset
uspto-grants-2013_12
Patent number
US08618115B2

Reaction notes

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