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Diisopropylethylamine → 5-amino-2-[2-(4-fluorophenyl)ethyl]-7-(1-tert-butoxycarbonyl-pyrrolidin-3-(S)-ylamino)-thiazolo[5,4-d]pyrimidine

HRID 718258
Notes
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Reaction equation

HRID 718258 reaction equation
[NH2:1][C:2]1[N:3]=[C:4](S(C)(=O)=O)[C:5]2[N:10]=[C:9]([CH2:11][CH2:12][C:13]3[CH:18]=[CH:17][C:16]([F:19])=[CH:15][CH:14]=3)[S:8][C:6]=2[N:7]=1.C(N(C(C)C)CC)(C)C.[NH2:33][C@H:34]1[CH2:38][CH2:37][N:36]([C:39]([O:41][C:42]([CH3:45])([CH3:44])[CH3:43])=[O:40])[CH2:35]1>ClCCl>[NH2:1][C:2]1[N:3]=[C:4]([NH:33][C@H:34]2[CH2:38][CH2:37][N:36]([C:39]([O:41][C:42]([CH3:45])([CH3:44])[CH3:43])=[O:40])[CH2:35]2)[C:5]2[N:10]=[C:9]([CH2:11][CH2:12][C:13]3[CH:18]=[CH:17][C:16]([F:19])=[CH:15][CH:14]=3)[S:8][C:6]=2[N:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 854071tert-butyl (3S)-3-aminopyrrolidine-1-carboxylateHCID 509418672-(4-Fluorophenethyl)-7-(methylsulfonyl)thiazolo[5,4-d]pyrimidin-5-amine

Product 1

HCID 469168485-amino-2-[2-(4-fluorophenyl)ethyl]-7-(1-tert-butoxycarbonyl-pyrrolidin-3-(S)-ylamino)-thiazolo[5,4-d]pyrimidineYield 42.1%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

To a solution of 5-amino-2-[2-(4-fluorophenyl)ethyl]-7-methanesulfonyl-thiazolo[5,4-d]pyrimidine (150 mg, 0.42 mmol) in dichloromethane (10 ml) was added diisopropylethylamine (3.0 mmol, 492 μL) and tert-butyl 3-(S)-aminopyrrolidine-1-carboxylate (2.1 mmol). The reaction mixture was refluxed for 40 hours whereupon the mixture was extracted with a saturated sodium bicarbonate solution. The organic phase was dried over magnesium sulfate and the solvent was removed in vacuo. The resulting residue was purified by flash chromatography on silica, the mobile phase being a mixture of methanol and dichloromethane (in a ratio gradually ranging from 100% CH2Cl2 to 1% CH3OH in CH2Cl2), yielding the pure title compound (81 mg) which was characterized by its mass spectrum: MS m/z (%): 459 ([M+H]+, 100).

Workup

  1. temperatureThe reaction mixture was refluxed for 40 hours whereupon the mixture
  2. extractionwas extracted with a saturated sodium bicarbonate solution
  3. dry with materialThe organic phase was dried over magnesium sulfate
  4. customthe solvent was removed in vacuo
  5. customThe resulting residue was purified by flash chromatography on silica
  6. additiona mixture of methanol and dichloromethane (in a ratio

Sources & evidence

ORD record
ord-ba9b67f6fd3c439d8e2f0e5efb57f3bd
Source dataset
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09193741B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes