Diisopropylethylamine → Capivasertib

HRID 422985Notes

Reaction equation

HRID 422985 reaction equation
C(N(C(C)C)C(C)C)C.[NH2:10][C:11]1([C:17]([NH:19][C@H:20]([C:24]2[CH:29]=[CH:28][C:27]([Cl:30])=[CH:26][CH:25]=2)[CH2:21][CH2:22][OH:23])=[O:18])[CH2:16][CH2:15][NH:14][CH2:13][CH2:12]1.Cl[C:32]1[C:33]2[CH:40]=[CH:39][NH:38][C:34]=2[N:35]=[CH:36][N:37]=1>C(O)CCC.CCOC(C)=O>[NH2:10][C:11]1([C:17]([NH:19][C@H:20]([C:24]2[CH:29]=[CH:28][C:27]([Cl:30])=[CH:26][CH:25]=2)[CH2:21][CH2:22][OH:23])=[O:18])[CH2:16][CH2:15][N:14]([C:32]2[C:33]3[CH:40]=[CH:39][NH:38][C:34]=3[N:35]=[CH:36][N:37]=2)[CH2:13][CH2:12]1

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 53566827H-Pyrrolo(2,3-d)pyrimidine, 4-chloro-HCID 57750388(S)-4-amino-N-(1-(4-chlorophenyl)-3-hydroxypropyl)piperidine-4-carboxamide2×

Product 1

HCID 25227436CapivasertibYield 61.2%

Reagents, catalysts & solvents 2

HCID 2631-ButanolSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

N-Ethyldiisopropylamine (1.676 ml, 9.62 mmol) was added to (S)-4-amino-N-(1-(4-chlorophenyl)-3-hydroxypropyl)piperidine-4-carboxamide (Intermediate 49) (1 g, 3.21 mmol) and 4-chloro-7H-pyrrolo[2,3-d]pyrimidine (0.493 g, 3.21 mmol) in butan-1-ol (15 ml). The resulting solution was stirred at 60° C. for 18 hours. The reaction mixture was diluted with EtOAc (50 mL), and washed sequentially with water (25 mL) and saturated brine (25 mL). The organic layer was dried over MgSO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradient 0 to 6% MeOH with ammonia in DCM. Pure fractions were evaporated to dryness to afford (S)-4-amino-N-(1-(4-chlorophenyl)-3-hydroxypropyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide (842 mg) as a white foam. (S)-4-amino-N-(1-(4-chlorophenyl)-3-hydroxypropyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide was stirred in ethyl acetate (7 mL) for 18 hours. The solid was collected by filtration, washed with a small amount of ethyl acetate and vacuum oven dried at 55° C. for 18 hours to afford (S)-4-amino-N-(1-(4-chlorophenyl)-3-hydroxypropyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide (0.585 g, 42.5%) as a white solid. m/z (ES+) (M+H)+=429; HPLC tR=1.60 min.

Workup

  1. washwashed sequentially with water (25 mL) and saturated brine (25 mL)
  2. dry with materialThe organic layer was dried over MgSO4
  3. filtrationfiltered
  4. customevaporated
  5. customto afford crude product
  6. customThe crude product was purified by flash silica chromatography, elution gradient 0 to 6% MeOH with ammonia in DCM
  7. customPure fractions were evaporated to dryness

Sources & evidence

ORD record
ord-de61dd75e6324ddaaa93b336f9cd25d0
Source dataset
uspto-grants-2012_01
Patent number
US08101623B2

Reaction notes

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