Hydrogen Bromide → (R)-3-(1-aminoethyl)-N-(3-chlorophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-amine

HRID 446911노트

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HRID 446911 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([NH:8][C:9]2[S:13][C:12]3=[N:14][N:15]=[C:16]([C@H:17]([NH:19]C(=O)OCC4C=CC=CC=4)[CH3:18])[N:11]3[N:10]=2)[CH:5]=[CH:6][CH:7]=1.Br>C(O)(=O)C.O>[NH2:19][C@@H:17]([C:16]1[N:11]2[C:12]([S:13][C:9]([NH:8][C:4]3[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[CH:3]=3)=[N:10]2)=[N:14][N:15]=1)[CH3:18]

참가 물질

5

반응물 2

HCID 260Hydrogen BromideHCID 86642295(R)-benzyl 1-(6-(3-chlorophenylamino)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl)ethylcarbamate

생성물 1

HCID 59363289(R)-3-(1-aminoethyl)-N-(3-chlorophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-amine수율 70.1%

시약·촉매·용매 2

HCID 176Acetic Acid용매HCID 962Water용매

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온도
90 °C

실험 절차

(Step 8-iii) To a slurry of (R)-benzyl 1-(6-(3-chlorophenylamino)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl)ethylcarbamate (0.39 g, 0.92 mmol) in acetic acid (20 mL) was added 48% hydrobromic acid in water (10 mL). The mixture was heated to 90° C. for 2 hours. After cooling to room temperature, the resulting solution was concentrated to ⅓ the original volume, poured on ice and the pH adjusted to 8 with 2N sodium hydroxide. The resulting precipitate was filtered, washed with water, and dried overnight in vacuo to provide (R)-3-(1-aminoethyl)-N-(3-chlorophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-amine (0.19 g): ESMS MH+=294.

후처리

  1. temperatureAfter cooling to room temperature
  2. concentrationthe resulting solution was concentrated
  3. additionpoured on ice
  4. filtrationThe resulting precipitate was filtered
  5. washwashed with water
  6. customdried overnight in vacuo

출처 및 근거

ORD 기록
ord-6446ea2ea20d4ac58d1082da7b13e87c
출처 데이터셋
uspto-grants-2013_07
특허 번호
US08481538B2

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