Trifluoroacetic acid → HCID 117996071, 화합물

HRID 1488246노트

반응식

HRID 1488246 반응식
[C:1]([O:9][C@H:10]1[C@@H:21]([O:22][C:23](=[O:30])[C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C@H:20]([O:31][C:32](=[O:39])[C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[C@@H:19]([CH:40](C(C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[OH:41])[O:18][C@@H:11]1[O:12][CH2:13][CH2:14][N:15]=[N+:16]=[N-:17])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[C:1]([O:9][C@H:10]1[C@@H:21]([O:22][C:23](=[O:30])[C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C@H:20]([O:31][C:32](=[O:39])[C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[C@@H:19]([CH2:40][OH:41])[O:18][C@@H:11]1[O:12][CH2:13][CH2:14][N:15]=[N+:16]=[N-:17])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

4

반응물 2

HCID 6422Trifluoroacetic acidHCID 1317368542-azidoethyl 2,3,4-tri-O-benzoyl-6-trityl-alpha-D-mannopyranoside

생성물 1

HCID 117996071HCID 117996071, 화합물

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

반응 조건

온도
25 °C

실험 절차

In a 100 mL round bottom flask, 2-azidoethyl 2,3,4-tri-O-benzoyl-6-trityl-α-D-mannopyranoside (1.1 g, 1.368 mmol) was dissolved in CH2Cl2 (10 mL). To the above solution was added TFA (10 mL, 130 mmol). After stirring at 25° C. for 18 hr, the mixture was diluted with CH2Cl2 (20 mL), washed with brine (10 mL) and sat NaHCO3 till pH ˜7. The organic phase was dried over MgSO4, filtered and concentrated. The residue was purified by flash chromatography on silica gel (40 g), eluting with 0-100% EtOAc in hexane, to to give the title compound. LC-MS Method A: m/e=579.12 [M+18] and 584.10 [M+Na]; Rt=2.22 min. 1H NMR (CDCl3) δ 7.2-8.2 (m, 15H), 6.0 (dd, 1H), 5.9 (t, 1H), 5.7 (m, 1H), 5.2 (br-s, 1H), 4.1-4.2 (m, 2H), 3.85 (m, 1H), 3.7-3.8 (m, 2H), 3.6 (m, 1H, 3.5 (m, 1H).

후처리

  1. washwashed with brine (10 mL)
  2. dry with materialThe organic phase was dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified by flash chromatography on silica gel (40 g)
  6. washeluting with 0-100% EtOAc in hexane

출처 및 근거

ORD 기록
ord-411902ffe8954ab594e3148766467c6e
출처 데이터셋
uspto-grants-2016_08
특허 번호
US09427475B2

반응 노트

불러오는 중…