Ethanamine, 2,2,2-trifluoro- → 2-[1-(2-Fluorobenzyl)-1,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl]-5,5-dimethyl-4-[(2,2,2-trifluoroethyl)amino]-5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one

HRID 536508Notes

Reaction equation

[F:1][C:2]1[CH:29]=[CH:28][CH:27]=[CH:26][C:3]=1[CH2:4][N:5]1[C:9]2[CH2:10][CH2:11][CH2:12][C:8]=2[C:7]([C:13]2[N:14]=[C:15](I)[C:16]3[C:21]([CH3:23])([CH3:22])[C:20](=[O:24])[NH:19][C:17]=3[N:18]=2)=[N:6]1.[F:30][C:31]([F:35])([F:34])[CH2:32][NH2:33]>CN1C(=O)CCC1>[F:1][C:2]1[CH:29]=[CH:28][CH:27]=[CH:26][C:3]=1[CH2:4][N:5]1[C:9]2[CH2:10][CH2:11][CH2:12][C:8]=2[C:7]([C:13]2[N:14]=[C:15]([NH:33][CH2:32][C:31]([F:35])([F:34])[F:30])[C:16]3[C:21]([CH3:23])([CH3:22])[C:20](=[O:24])[NH:19][C:17]=3[N:18]=2)=[N:6]1

Participants

Conditions

Temperature: 170 °C

Procedure

50 mg (0.09 mmol) of 2-[1-(2-fluorobenzyl)-1,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl]-4-iodo-5,5-dimethyl-5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one (example 33A) was dissolved in 1 ml of absolute NMP and 336 mg (3.70 mmol) of 2,2,2-trifluoroethanamine was added. The mixture was heated in the microwave for 2 h at 150° C., 18 h at 150° C., 2 h at 160° C., 2 h at 170° C. and 5 h at 170° C. The reaction solution was filtered and purified by preparative HPLC (eluent: acetonitrile/water with 0.1% formic acid, gradient 20:80→100:0). 18 mg (purity 88%, 36% of theor.) of the target compound was obtained.

Workup

filtrationThe reaction solution was filtered
custompurified by preparative HPLC (eluent: acetonitrile/water with 0.1% formic acid, gradient 20:80→100:0)
custom18 mg (purity 88%, 36% of theor.) of the target compound was obtained

Sources & evidence

ORD record: ord-4f472436d32549a9ba06aecc0c3b76da
Source dataset: uspto-grants-2014_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08859569B2

Reaction notes

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