Tetrabutylammonium Fluoride → N2-[4-(dimethylphosphoryl)-2-methoxyphenyl]-N4-[2-(propan-2-ylsulfonyl)phenyl]-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine

HRID 921324Notes

Reaction equation

[CH3:1][P:2]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][C:12]2[N:13]=[C:14]([NH:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=3[S:36]([CH:39]([CH3:41])[CH3:40])(=[O:38])=[O:37])[C:15]3[CH:20]=[CH:19][N:18](COCC[Si](C)(C)C)[C:16]=3[N:17]=2)=[C:7]([O:42][CH3:43])[CH:6]=1)([CH3:4])=[O:3].[F-].C([N+](CCCC)(CCCC)CCCC)CCC>C1COCC1.C(N)CN>[CH3:4][P:2]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][C:12]2[N:13]=[C:14]([NH:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=3[S:36]([CH:39]([CH3:40])[CH3:41])(=[O:37])=[O:38])[C:15]3[CH:20]=[CH:19][NH:18][C:16]=3[N:17]=2)=[C:7]([O:42][CH3:43])[CH:6]=1)([CH3:1])=[O:3]

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of compound N2-[4-(dimethylphosphoryl)-2-methoxyphenyl]-N4-[2-(propan-2-ylsulfonyl)phenyl]-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine in THF (1 mL) was added tetrabutylammonium fluoride (TBAF) in THF (1.0 M, 3 mL) and ethylenediamine (0.1 mL). The solution was heated at 60° C. for 24 hrs. About 40% conversion was observed by HPLC monitoring. Volatile components were removed on rotavap and the residue was subjected to prep-HPLC purification. The desired product was determined by NMR to be contaminated with TBAF, which was removed by water wash (4 times). Evaporation of EtOAc gave the pure compound (14 mg). MS/ES+: m/z=514.

Workup

customVolatile components were removed on rotavap
customthe residue was subjected to prep-HPLC purification
customwas removed by water
washwash (4 times)
customEvaporation of EtOAc

Sources & evidence

ORD record: ord-7ff640c87374445388c02ee9b048b583
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09273077B2

Reaction notes

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