Trifluoroacetic acid → HCID 25152743、化合物

HRID 539139ノート

反応式

HRID 539139 の反応式
[OH:1][C@H:2]1[CH2:17][C:16](=[O:18])[O:15][O:14][C@H:13](/[CH:19]=[CH:20]/[CH2:21][CH2:22][S:23]C(C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[CH2:12][C:11](=[O:43])[NH:10][C@H:9]([CH:44]([CH3:46])[CH3:45])[C:8](=[O:47])[NH:7][C@H:6]([CH3:48])[C:5](=[O:49])[NH:4][C@@H:3]1[CH:50]([CH3:52])[CH3:51].C([SiH](CC)CC)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[OH:1][C@H:2]1[CH2:17][C:16](=[O:18])[O:15][O:14][C@H:13](/[CH:19]=[CH:20]/[CH2:21][CH2:22][SH:23])[CH2:12][C:11](=[O:43])[NH:10][C@H:9]([CH:44]([CH3:46])[CH3:45])[C:8](=[O:47])[NH:7][C@H:6]([CH3:48])[C:5](=[O:49])[NH:4][C@@H:3]1[CH:50]([CH3:52])[CH3:51]

参加物

5

反応物 3

HCID 6422Trifluoroacetic acidHCID 12052TriethylsilaneHCID 86639580HCID 86639580、化合物

生成物 1

HCID 25152743HCID 25152743、化合物

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of 9 (24.7 mg, 0.035 mmol) in CH2Cl2 (1.4 mL) was added triethylsilane (28 μL, 0.175 mmol) followed by the dropwise addition of TFA (0.35 mL, 25% v/v). After stirring for 1 h the reaction mixture was concentrated in vacuo and put under high vacuum for 2 h to give the crude thiol 10. At 0° C. to a solution of thiol 10 in CH2Cl2 (0.45 mL) was added diisopropylethylamine (30 μL, 0.172 mmol) followed by acetyl chloride (2.43 μL, 0.034 mmol) in CH2Cl2 (0.1 mL). After stirring for 2 h 10 min 1M HCl (1 mL) was added followed by EtOAc (10 mL) the layers were separated and the organic layer was washed with sat. brine (10 mL). The organic layer was dried (MgSO4) and concentrated in vacuo. Purification by flash column chromatography (eluent 1:0-98:2-96:4-94:6-92.8 CH2Cl2/MeOH) gave the product 11 (7.3 mg, 0.014 mmol, 41%) as a white solid: Rf 0.47 MeOH/CH2Cl2 (1:9).

後処理

  1. concentrationwas concentrated in vacuo
  2. waitput under high vacuum for 2 h

出典と根拠

ORDレコード
ord-eff13ef88a504e018cc3ab26816edf0f
出典データセット
uspto-grants-2014_10
特許番号
US08865655B2

反応ノート

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