Trifluoroacetic acid → 1,4,5,6-Tetrahydro-5-(3-methyl-1,2,4-oxadiazol-5-yl)pyrimidine trifluoroacetate
반응식
C1(C(C2C=CC=CC=2)(C2C=CC=CC=2)[N:8]2[CH2:13][CH:12]([C:14]3[O:18][N:17]=[C:16]([CH3:19])[N:15]=3)[CH2:11][N:10]=[CH:9]2)C=CC=CC=1.[F:32][C:33]([F:38])([F:37])[C:34]([OH:36])=[O:35]>>[F:32][C:33]([F:38])([F:37])[C:34]([OH:36])=[O:35].[CH3:19][C:16]1[N:15]=[C:14]([CH:12]2[CH2:13][NH:8][CH:9]=[N:10][CH2:11]2)[O:18][N:17]=1참가 물질
3
실험 절차
1-Triphenylmethyl-1,4,5,6-tetrahydro-5-(3-methyl-1,2,4-oxadiazol-5-yl)pyrimidine (254 mg, 0.6 mmol) is dissolved in trifluoroacetic acid (TFA) (1 mL) with stirring at room temperature for 24 hours. The dark solution is then evaporated in vacuo, and the residue recrystallized from methanol/ether to yield 105 mg (62%) white crystals, mp 120°-122° C. identified by 300 MHz nmr. Calculated: C 38.57, H 3.96, N 19.99; found: C 38.72, H 4.09, N 19.78.
후처리
- customThe dark solution is then evaporated in vacuo
- customthe residue recrystallized from methanol/ether
출처 및 근거
- ORD 기록
- ord-7b6b6c7fcb484780847907858e330cb0
- 출처 데이터셋
- uspto-grants-1995_04
- 특허 번호
- US05403845
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