Diisopropylethylamine → 2,2-Dimethylpropionic acid 2-[(S)-3-(5-fluoro-2-{(S)-2-[9-(tetrahydropyran-2-yl)-9H-purin-6-ylamino]propionylamino}phenylamino)piperidin-1-yl]ethyl ester

HRID 243037Notes

Reaction equation

[NH2:1][C@@H:2]([CH3:29])[C:3]([NH:5][C:6]1[CH:11]=[CH:10][C:9]([F:12])=[CH:8][C:7]=1[NH:13][C@H:14]1[CH2:19][CH2:18][CH2:17][N:16]([CH2:20][CH2:21][O:22][C:23](=[O:28])[C:24]([CH3:27])([CH3:26])[CH3:25])[CH2:15]1)=[O:4].Cl[C:31]1[N:39]=[CH:38][N:37]=[C:36]2[C:32]=1[N:33]=[CH:34][N:35]2[CH:40]1[CH2:45][CH2:44][CH2:43][CH2:42][O:41]1.CCN(C(C)C)C(C)C>C(O)CCC>[F:12][C:9]1[CH:10]=[CH:11][C:6]([NH:5][C:3](=[O:4])[C@@H:2]([NH:1][C:31]2[N:39]=[CH:38][N:37]=[C:36]3[C:32]=2[N:33]=[CH:34][N:35]3[CH:40]2[CH2:45][CH2:44][CH2:43][CH2:42][O:41]2)[CH3:29])=[C:7]([NH:13][C@H:14]2[CH2:19][CH2:18][CH2:17][N:16]([CH2:20][CH2:21][O:22][C:23](=[O:28])[C:24]([CH3:25])([CH3:27])[CH3:26])[CH2:15]2)[CH:8]=1

Participants

Conditions

Temperature: 90 °C

Procedure

A mixture of 2,2-dimethylpropionic acid 2-{(S)-3-[2-((S)-2-aminopropionylamino)-5-fluorophenylamino]piperidin-1-yl}ethyl ester, (0.591 g, 1.45 mmol), 6-chloro-9-(tetrahydropyran-2-yl)-9H-purine (0.346 g, 1.45 mmol), and DIPEA (0.74 mL, 4.32 mmol) in n-butanol (7 mL) was stirred in a sealed vial at 90° C. for 16 h. After cooling to RT the volatiles were removed in vacuo and the resulting residue purified by column chromatography (Si—PCC, gradient 2-8% 2M NH3/MeOH in DCM) affording the title compound as a colourless gum (0.583 g, 66%). LCMS (Method J): RT 2.39 min [M+H]+ 611.

Workup

temperatureAfter cooling to RT the volatiles
customwere removed in vacuo
customthe resulting residue purified by column chromatography (Si—PCC, gradient 2-8% 2M NH3/MeOH in DCM)

Sources & evidence

ORD record: ord-b4e3e746d756430191f97eb06da75341
Source dataset: uspto-grants-2014_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08653089B2

Reaction notes

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