Hydrochloric Acid → Capivasertib

HRID 422987Notes

Reaction equation

HRID 422987 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([NH:12][C:13]([C:15]2([NH:30]C(=O)OC(C)(C)C)[CH2:20][CH2:19][N:18]([C:21]3[C:22]4[CH:29]=[CH:28][NH:27][C:23]=4[N:24]=[CH:25][N:26]=3)[CH2:17][CH2:16]2)=[O:14])[CH2:9][CH2:10][OH:11])=[CH:4][CH:3]=1.Cl>O1CCOCC1>[NH2:30][C:15]1([C:13]([NH:12][C@H:8]([C:5]2[CH:4]=[CH:3][C:2]([Cl:1])=[CH:7][CH:6]=2)[CH2:9][CH2:10][OH:11])=[O:14])[CH2:16][CH2:17][N:18]([C:21]2[C:22]3[CH:29]=[CH:28][NH:27][C:23]=3[N:24]=[CH:25][N:26]=2)[CH2:19][CH2:20]1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 57750298(S)-tert-butyl 4-(1-(4-chlorophenyl)-3-hydroxypropylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate2×

Product 1

HCID 25227436CapivasertibYield 30.7%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent2×

Procedure

(S)-3-Amino-3-(4-chlorophenyl)propan-1-ol (Intermediate 47) (2.055 g, 11.07 mmol) was added in one portion to 4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxylic acid (Intermediate 1) (4 g, 11.07 mmol) and DIPEA (5.80 ml, 33.20 mmol) in DMA (40 ml). HATU (4.63 g, 12.18 mmol) was added and the resulting solution was stirred at 20° C. for 24 hours. The reaction mixture was evaporated to dryness then diluted with EtOAc (300 mL), and washed sequentially with water (50 mL) and saturated brine (50 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 2 to 6% MeOH with ammonia in DCM. Pure fractions were evaporated to dryness and triturated with dioxane (40 ml) to afford (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-hydroxypropylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (Intermediate 22) (4.82 g, 82%) as a white solid. (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-hydroxypropylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (Intermediate 22) (4.82 g, 82%) was suspended in dioxane (40.0 ml) and 4M hydrogen chloride in dioxane (7.69 ml, 221.36 mmol) added. The reaction was stirred at ambient temperature for 2 hours. The crude product was purified by ion exchange chromatography, using an SCX column. The desired product was eluted from the column using 3.5M NH3/MeOH and pure fractions were evaporated to dryness. The crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5 μm silica, 19 mm diameter, 100 mm length), using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound 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 (1.200 g, 25.3%) as a white solid.

Workup

  1. customThe crude product was purified by ion exchange chromatography
  2. washThe desired product was eluted from the column
  3. customwere evaporated to dryness
  4. customThe crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5 μm silica, 19 mm diameter, 100 mm length)
  5. additionFractions containing the desired compound
  6. customwere evaporated to dryness

Sources & evidence

ORD record
ord-023943ce49734992a9788d954269d4b9
Source dataset
uspto-grants-2012_01
Patent number
US08101623B2

Reaction notes

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