Trifluoroacetic acid → (R)-6-nitro-5-(4-phenoxyphenyl)-7-(pyrrolidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

반응식

C(OC([N:8]1[CH2:12][CH2:11][C@@H:10]([N:13]2[C:17]3[N:18]=[CH:19][N:20]=[C:21]([NH2:22])[C:16]=3[C:15]([C:23]3[CH:28]=[CH:27][C:26]([O:29][C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)=[CH:25][CH:24]=3)=[CH:14]2)[CH2:9]1)=O)(C)(C)C.C(O)(C(F)(F)F)=O.[N:43]([O-:45])=[O:44].[Na+]>>[N+:43]([C:14]1[N:13]([C@@H:10]2[CH2:11][CH2:12][NH:8][CH2:9]2)[C:17]2[N:18]=[CH:19][N:20]=[C:21]([NH2:22])[C:16]=2[C:15]=1[C:23]1[CH:24]=[CH:25][C:26]([O:29][C:30]2[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=2)=[CH:27][CH:28]=1)([O-:45])=[O:44]

참가 물질

반응물 3

HCID 6422Trifluoroacetic acid

HCID 23668193Sodium Nitrite

HCID 86719376(R)-tert-butyl-3-(4-amino-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)pyrrolidine-1-carboxylate

생성물 1

HCID 86719407(R)-6-nitro-5-(4-phenoxyphenyl)-7-(pyrrolidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine수율 143.7%

실험 절차

(R)-tert-Butyl 3-(4-amino-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)pyrrolidine-1-carboxylate (2) (400 mg, 0.85 mmol) was treated with TFA (6 mL). The resulting mixture was stirred at rt for 30 min, then NaNO2 (41 mg, 0.59 mmol) was added. After the stifling was continued for 1 hr, the reaction was concentrated under vacuum. DCM (10 mL×2) was added and concentrated to remove the residue TFA to afford (R)-6-nitro-5-(4-phenoxyphenyl)-7-(pyrrolidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine (160) (353 mg, quant. yield) as a yellow oil, which was used directly in next step without purification. LC-MS (ESI): m/z (M+1) 417.2.