Hydrochloric Acid → N4-Ethyl-N2-(4-(oxazol-5-yl)phenyl)-N4-((tetrahydrofuran-2-yl)methyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-diamine

HRID 1930666Notes

Reaction equation

[CH2:1]([N:3]([CH2:33][CH:34]1[CH2:38][CH2:37][CH2:36][O:35]1)[C:4]1[C:5]2[CH2:25][N:24](C(OC(C)(C)C)=O)[CH2:23][CH2:22][C:6]=2[N:7]=[C:8]([NH:10][C:11]2[CH:16]=[CH:15][C:14]([C:17]3[O:21][CH:20]=[N:19][CH:18]=3)=[CH:13][CH:12]=2)[N:9]=1)[CH3:2].Cl>CO>[CH2:1]([N:3]([CH2:33][CH:34]1[CH2:38][CH2:37][CH2:36][O:35]1)[C:4]1[C:5]2[CH2:25][NH:24][CH2:23][CH2:22][C:6]=2[N:7]=[C:8]([NH:10][C:11]2[CH:12]=[CH:13][C:14]([C:17]3[O:21][CH:20]=[N:19][CH:18]=3)=[CH:15][CH:16]=2)[N:9]=1)[CH3:2]

Participants

Conditions

Temperature: 80 °C

Procedure

tert-Butyl 4-(ethyl((tetrahydrofuran-2-yl)methyl)amino)-2-(4-(oxazol-5-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (320 mg, 0.61 mmol) was dissolved in methanol (5 mL). Hydrochloric acid (0.019 mL, 0.61 mmol) was added and the reaction mixture was stirred at 80° C. for 1 h. The solvent was evaporated under reduced pressure and the crude was used as such in the subsequent step. MS (ES+) m/z 421.0 (M+H)+

Workup

customThe solvent was evaporated under reduced pressure

Sources & evidence

ORD record: ord-24c9e705f44341d49d6da4089fa54b14
Source dataset: uspto-grants-2012_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08188101B2

Reaction notes

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