Potassium Carbonate → 6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.5]nonane-1-carboxylic acid benzyl ester

HRID 1912404Notes

Reaction equation

[CH2:1]([O:8][C:9]([N:11]1[C:14]2([CH2:19][CH2:18][CH2:17][NH:16][CH2:15]2)[CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[C:21]1[C:22]2[CH:29]=[CH:28][NH:27][C:23]=2[N:24]=[CH:25][N:26]=1.C(=O)([O-])[O-].[K+].[K+]>O>[CH2:1]([O:8][C:9]([N:11]1[C:14]2([CH2:19][CH2:18][CH2:17][N:16]([C:21]3[C:22]4[CH:29]=[CH:28][NH:27][C:23]=4[N:24]=[CH:25][N:26]=3)[CH2:15]2)[CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 100 °C

Procedure

An optically-active compound of 1,6-diazaspiro[3.5]nonane-1-carboxylic acid benzyl ester (2.37 g) was mixed with 4-chloro-7H-pyrrolo[2,3-d]pyrimidine (1.4 g), potassium carbonate (3.8 g) and water (71 ml), and heated to 100° C. to stir for 3 hours. The mixture was cooled to room temperature. Then, thereto was added water and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution and concentrated under reduced pressure. The resulting residue was slurry-washed with n-hexane/ethyl acetate (1/1) solution to give the titled compound (2.55 g).

Workup

temperatureThe mixture was cooled to room temperature
extractionthe mixture was extracted with ethyl acetate
washThe organic layer was washed with saturated aqueous sodium chloride solution
concentrationconcentrated under reduced pressure
washThe resulting residue was slurry-washed with n-hexane/ethyl acetate (1/1) solution

Sources & evidence

ORD record: ord-73b6882b46cb4a28847c68bb375f3445
Source dataset: uspto-grants-2013_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08609647B2

Reaction notes

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