Triethyl methanetricarboxylate → 2-hydroxy-4-oxo-7-(5-trifluoromethyl-pyridin-2-yl)-5,6,7,8-tetrahydro-4H-9-thia-1,4a,7-triaza-fluorene-3-carboxylic acid ethyl ester

HRID 44445

반응식

HRID 44445 반응식
[F:1][C:2]([F:20])([F:19])[C:3]1[CH:4]=[CH:5][C:6]([N:9]2[CH2:14][CH2:13][C:12]3[N:15]=[C:16]([NH2:18])[S:17][C:11]=3[CH2:10]2)=[N:7][CH:8]=1.[CH:21]([C:32](OCC)=[O:33])([C:27](OCC)=[O:28])[C:22]([O:24][CH2:25][CH3:26])=[O:23]>C1(C)C(C)=CC=CC=1>[CH2:25]([O:24][C:22]([C:21]1[C:27](=[O:28])[N:15]2[C:16]([S:17][C:11]3[CH2:10][N:9]([C:6]4[CH:5]=[CH:4][C:3]([C:2]([F:19])([F:1])[F:20])=[CH:8][N:7]=4)[CH2:14][CH2:13][C:12]=32)=[N:18][C:32]=1[OH:33])=[O:23])[CH3:26]

참가 물질

4

반응물 2

HCID 80471Triethyl methanetricarboxylateHCID 735550495-(5-(Trifluoromethyl)pyridin-2-yl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-amine

생성물 1

HCID 1363377772-hydroxy-4-oxo-7-(5-trifluoromethyl-pyridin-2-yl)-5,6,7,8-tetrahydro-4H-9-thia-1,4a,7-triaza-fluorene-3-carboxylic acid ethyl ester수율 15.5%

시약·촉매·용매 1

HCID 7237O-Xylene용매

반응 조건

온도
145 °C

실험 절차

The mixture of 5-(5-trifluoromethyl-pyridin-2-yl)-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-ylamine (5.7 gm, 0.019 mol) and triethyl methanetricarboxylate (16.1 ml, 0.076 mol) in xylene (100 ml) was heated at 140-150° C. for 6 hours. Xylene was evaporated and diethyl ether was then added and the suspension was stirred for 15 minutes. It was filtered and washed with ether. The crude solid was digested with dichloromethane (200 ml) and filtered to remove insoluble residue. Dichloromethane layer was distilled off under vacuum to give 1.3 gm of title compound.

후처리

  1. customXylene was evaporated
  2. additiondiethyl ether was then added
  3. filtrationIt was filtered
  4. washwashed with ether
  5. filtrationfiltered
  6. customto remove insoluble residue
  7. distillationDichloromethane layer was distilled off under vacuum

출처 및 근거

ORD 기록
ord-2f262340c5794983a7389138666a2698
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08541430B2

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