Sulfuric Acid → Sanglifehrin A

HRID 1955303노트

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HRID 1955303 반응식
[CH3:1][CH2:2][C@@H:3]1[C:77](=[O:78])[NH:76][C@@:6]2([O:11][C@@H:10]([CH2:12][C@H:13]([OH:72])[C@H:14]([CH2:16][CH2:17]/[CH:18]=[CH:19]/[CH:20]=[C:21](/[C@H:23]3[O:58][C:56](=[O:57])[C@@H:54]4[NH:55][N:50]([CH2:51][CH2:52][CH2:53]4)[C:48](=[O:49])[C@H:47]([CH2:59][C:60]4[CH:65]=[CH:64][CH:63]=[C:62]([OH:66])[CH:61]=4)[NH:46][C:44](=[O:45])[C@H:43]([CH:67]([CH3:69])[CH3:68])[NH:42][C:40](=[O:41])[C@@H:32]4[CH2:33][CH2:34][C@:35]([O:38]C)([CH3:37])[O:36][C@@H:31]4[C@@H:30]([CH3:70])[C@@H:29]([OH:71])[CH:28]=[CH:27][CH:26]=[CH:25][CH2:24]3)\[CH3:22])[CH3:15])[C@H:9]([CH3:73])[C@H:8]([OH:74])[C@@H:7]2[CH3:75])[C@@H:5]([CH3:79])[CH2:4]1.S(=O)(=O)(O)O>C1COCC1.O>[CH3:1][CH2:2][C@@H:3]1[C:77](=[O:78])[NH:76][C@@:6]2([O:11][C@@H:10]([CH2:12][C@H:13]([OH:72])[C@H:14]([CH2:16][CH2:17]/[CH:18]=[CH:19]/[CH:20]=[C:21](/[C@H:23]3[O:58][C:56](=[O:57])[C@H:54]4[NH:55][N:50]([CH2:51][CH2:52][CH2:53]4)[C:48](=[O:49])[C@H:47]([CH2:59][C:60]4[CH:65]=[CH:64][CH:63]=[C:62]([OH:66])[CH:61]=4)[NH:46][C:44](=[O:45])[C@H:43]([CH:67]([CH3:68])[CH3:69])[NH:42][C:40](=[O:41])[C@H:32]([CH2:33][CH2:34][C:35]([CH3:37])=[O:38])[C@H:31]([OH:36])[C@@H:30]([CH3:70])[C@@H:29]([OH:71])[CH:28]=[CH:27][CH:26]=[CH:25][CH2:24]3)\[CH3:22])[CH3:15])[C@H:9]([CH3:73])[C@H:8]([OH:74])[C@@H:7]2[CH3:75])[C@@H:5]([CH3:79])[CH2:4]1

참가 물질

4

반응물 2

HCID 1118Sulfuric AcidHCID 22829433HCID 22829433, 화합물

생성물 1

HCID 5388925Sanglifehrin A

시약·촉매·용매 1

HCID 21881883Oxolane--water (1/1)용매

실험 절차

A solution of 550 mg (0.50 mmol) of sanglifehrin C in 5 mL of 4:1 THF-water is treated with 0.5 mL of 2N aqueous sulfuric acid and stirred for 1.5 h. The reaction is quenched with saturated aqueous sodium bicarbonate and the resulting mixture is extracted twice with ethyl acetate. The organic solution is washed with saturated aqueous sodium bicarbonate solution and twice with saturated brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue is purified by column chromatography on silica gel (90:10 methyl-tert.-butyl ether:methanol) to yield sanglifehrin A as a white amorphous powder.

후처리

  1. customThe reaction is quenched with saturated aqueous sodium bicarbonate
  2. extractionthe resulting mixture is extracted twice with ethyl acetate
  3. washThe organic solution is washed with saturated aqueous sodium bicarbonate solution and twice with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue is purified by column chromatography on silica gel (90:10 methyl-tert.-butyl ether:methanol)

출처 및 근거

ORD 기록
ord-4bac1d281d634de9817fc4db8c461dbc
출처 데이터셋
uspto-grants-2000_09
특허 번호
US06124453

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