1,4-Dioxane hydrochloride → (S)-2-(4-bromo-2-fluorophenyl)-2-((R)-5,5-dimethylpyrrolidin-2-yl)-1-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)ethanone dihydrochloride

HRID 1916425Notes

Reaction equation

HRID 1916425 reaction equation
[ClH:1].O1CCOCC1.[Br:8][C:9]1[CH:14]=[CH:13][C:12]([C@@H:15]([C@H:35]2[N:39](C(OC(C)(C)C)=O)[C:38]([CH3:48])([CH3:47])[CH2:37][CH2:36]2)[C:16]([N:18]2[CH2:23][CH2:22][N:21]([C:24]3[C:25]4[C@H:32]([CH3:33])[CH2:31][C@@H:30]([OH:34])[C:26]=4[N:27]=[CH:28][N:29]=3)[CH2:20][CH2:19]2)=[O:17])=[C:11]([F:49])[CH:10]=1>C(Cl)Cl>[ClH:1].[ClH:1].[Br:8][C:9]1[CH:14]=[CH:13][C:12]([C@@H:15]([C@H:35]2[CH2:36][CH2:37][C:38]([CH3:48])([CH3:47])[NH:39]2)[C:16]([N:18]2[CH2:23][CH2:22][N:21]([C:24]3[C:25]4[C@H:32]([CH3:33])[CH2:31][C@@H:30]([OH:34])[C:26]=4[N:27]=[CH:28][N:29]=3)[CH2:20][CH2:19]2)=[O:17])=[C:11]([F:49])[CH:10]=1

Participants

4

Reactant 2

HCID 204431481,4-Dioxane hydrochlorideHCID 66846458(S)-tert-butyl 5-((S)-1-(4-bromo-2-fluorophenyl)-2-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-2-oxoethyl)-2,2-dimethylpyrrolidine-1-carboxylate

Product 1

HCID 66846177(S)-2-(4-bromo-2-fluorophenyl)-2-((R)-5,5-dimethylpyrrolidin-2-yl)-1-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)ethanone dihydrochlorideYield 62%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4.0M HCl/Dioxane (0.121 mL, 0.483 mmol) was added to a solution of (S)-tert-butyl 5-((S)-1-(4-bromo-2-fluorophenyl)-2-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-2-oxoethyl)-2,2-dimethylpyrrolidine-1-carboxylate (0.104 g, 0.161 mmol) in DCM (1 mL). The solution stirred overnight, and the solvent was removed to yield (S)-2-(4-bromo-2-fluorophenyl)-2-((R)-5,5-dimethylpyrrolidin-2-yl)-1-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)ethanone dihydrochloride (0.0618 g, 0.0998 mmol, 62.0% yield). HPLC, 254 nm=1.988 minutes, 99.66% purity, LCMS (APCI+) 547.7 m/z [M+H]+; Retention time=2.45 minutes. 1H NMR (400 MHz, D2O) 8.58 (s, 1H), 7.54 (dd, J1=1.952 Hz, J2=9.761 Hz, 1H), 7.46 (dd, J1=1.562 Hz, J2=8.199 Hz, 1H), 7.35 (t, J=7.809 Hz, 1H), 5.32 (t, J=8.199 Hz, 1H), 4.79 (d, J=9.761 Hz, 1H), 4.40-4.31 (m, 1H), 4.0-3.9 (m, 2H), 3.82-3.62 (m, 3H), 2.30-2.28 (m, 1H), 2.27-2.15 (m, 1H), 2.02-1.84 (m, 4H), 1.58 (s, 3H), 1.44 (s, 3H), 1.29 (d, J=6.637 Hz, 3H).

Workup

  1. customthe solvent was removed

Sources & evidence

ORD record
ord-5930b30d3bf443b2a07c0ebe5348e67a
Source dataset
uspto-grants-2013_12
Patent number
US08618097B2

Reaction notes

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