Hydrochloric Acid → (S)-2-(4-chlorophenyl)-1-(4-((5R,7S)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-2-((R)-morpholin-3-yl)ethanone dihydrochloride

HRID 1916418Notes

Reaction equation

HRID 1916418 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([C@@H:28]2[CH2:33][O:32][CH2:31][CH2:30][N:29]2C(OC(C)(C)C)=O)[C:9]([N:11]2[CH2:16][CH2:15][N:14]([C:17]3[C:18]4[C@H:25]([CH3:26])[CH2:24][C@H:23]([OH:27])[C:19]=4[N:20]=[CH:21][N:22]=3)[CH2:13][CH2:12]2)=[O:10])=[CH:4][CH:3]=1.[ClH:41]>O1CCOCC1>[ClH:1].[ClH:41].[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C@@H:8]([C@@H:28]2[CH2:33][O:32][CH2:31][CH2:30][NH:29]2)[C:9]([N:11]2[CH2:12][CH2:13][N:14]([C:17]3[C:18]4[C@H:25]([CH3:26])[CH2:24][C@H:23]([OH:27])[C:19]=4[N:20]=[CH:21][N:22]=3)[CH2:15][CH2:16]2)=[O:10])=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 66845593(R)-tert-butyl 3-((S)-1-(4-chlorophenyl)-2-(4-((5R,7S)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-2-oxoethyl)morpholine-4-carboxylate

Product 1

HCID 66846194(S)-2-(4-chlorophenyl)-1-(4-((5R,7S)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-2-((R)-morpholin-3-yl)ethanone dihydrochlorideYield 54%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent2×

Procedure

(R)-tert-Butyl 3-((S)-1-(4-chlorophenyl)-2-(4-((5R,7S)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-2-oxoethyl)morpholine-4-carboxylate (0.0389 g, 0.0680 mmol) was dissolved in dioxane (1 mL) and treated with 4M hydrogen chloride in dioxane (0.425 mL, 1.70 mmol). The solution was stirred at ambient temperature overnight. The reaction was concentrated in vacuo, resuspended in dioxane and concentrated in vacuo. The residue was concentrated from MeOH (3 times) and then dissolved in MeOH. The solution was then added dropwise to Et2O to afford (S)-2-(4-chlorophenyl)-1-(4-((5R,7S)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-2-((R)-morpholin-3-yl)ethanone dihydrochloride (20 mg, 54%). m/z 472.1/474.0; 1H NMR (400 MHz, CD3OD) d ppm 8.57 (s, 1H), 7.48 (d, 2H), 7.40 (d, 2H), 5.13-5.07 (m, 1H), 4.50 (d, 1H), 4.15-4.05 (m, 1H), 4.01-3.55 (m, 13H), 3.53-3.39 (m, 1H), 2.83-2.73 (m, 1H), 1.65-1.56 (m, 1H), 1.23 (d, 3H)

Workup

  1. concentrationThe reaction was concentrated in vacuo
  2. concentrationconcentrated in vacuo
  3. concentrationThe residue was concentrated from MeOH (3 times)
  4. dissolutiondissolved in MeOH
  5. additionThe solution was then added dropwise to Et2O

Sources & evidence

ORD record
ord-bcdd01512a5243e3ae09c94e78a75f20
Source dataset
uspto-grants-2013_12
Patent number
US08618097B2

Reaction notes

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