Diethyl Ether → 7-(4-Fluoro-benzyl)-6-hydroxy-5-methoxy-6-phenyl-9-triisopropylsilanyloxy-6,7-dihydro-pyrrolo[3,4-g]quinolin-8-one

HRID 853623Notes

Reaction equation

HRID 853623 reaction equation
[F:1][C:2]1[CH:36]=[CH:35][C:5]([CH2:6][N:7]2[C:19](=[O:20])[C:18]3[C:17]([O:21][Si:22]([CH:29]([CH3:31])[CH3:30])([CH:26]([CH3:28])[CH3:27])[CH:23]([CH3:25])[CH3:24])=[C:16]4[C:11]([CH:12]=[CH:13][CH:14]=[N:15]4)=[C:10]([O:32][CH3:33])[C:9]=3[C:8]2=[O:34])=[CH:4][CH:3]=1.[C:37]1([Mg]Br)[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1.CCOCC>C1COCC1.CCOC(C)=O>[F:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][N:7]2[C:19](=[O:20])[C:18]3[C:17]([O:21][Si:22]([CH:29]([CH3:30])[CH3:31])([CH:26]([CH3:27])[CH3:28])[CH:23]([CH3:25])[CH3:24])=[C:16]4[C:11]([CH:12]=[CH:13][CH:14]=[N:15]4)=[C:10]([O:32][CH3:33])[C:9]=3[C:8]2([OH:34])[C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)=[CH:35][CH:36]=1

Participants

6

Reactant 3

HCID 3283Diethyl EtherHCID 58928738HCID 58928738, compoundHCID 178418255HCID 178418255, compound

Product 1

HCID 589287567-(4-Fluoro-benzyl)-6-hydroxy-5-methoxy-6-phenyl-9-triisopropylsilanyloxy-6,7-dihydro-pyrrolo[3,4-g]quinolin-8-oneYield 80%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
0 °C

Procedure

A mixture of 13 (36 mg, 0.071 mmol) in 0.35 mL of dry THF was cooled to 0° C. A 26 μL aliquot of a 3 M solution of phenyl magnesium bromide in ether (0.078 mmol) was added to the mixture and the reaction was allowed to warm up to room temperature. The reaction was worked up in 30 minutes when the reaction was complete as indicated by TLC. The mixture was diluted with EtOAc and washed with water. The product 14 was purified by column chromatography using 20% EtOAc-Hex solvent system to provide 33 mg (80%) of the product as a solid. 1H NMR (300 MHz, CDCl3) δ 1.20 (s, 18H), 1.52-1.68 (m, 3H), 2.95 (s, 1H), 3.93 (s, 3H), 4.08 (d, 1H, J=15 Hz), 4.77 (d, 1H, J=15 Hz), 6.85 (t, 2H, J=9Hz), 7.19-7.25 (m, 2H), 7.25-7.35 (m, 3H), 7.39-7.49 (m, 3H), 8.26 (d, 1H, J=8 Hz), 8.84 (br d, 1H, J=4 Hz); 19F NMR (282.6 MHz, CDCl3) δ −76.2, 60.7; EI MS (m/z) 587.5 [MH+], 609.4 [M+Na].

Workup

  1. temperatureto warm up to room temperature
  2. washwashed with water
  3. customThe product 14 was purified by column chromatography

Sources & evidence

ORD record
ord-c0dedf6f6b094ca6be529cbdab752a76
Source dataset
uspto-grants-2007_08
Patent number
US07253180B2

Reaction notes

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