Pyridine → HCID 86602916, compound

HRID 901769Notes

Reaction equation

HRID 901769 reaction equation
[CH2:1]([O:8][C@@H:9]1[C@@H:18]([O:19][CH2:20][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[C@H:17]([O:27][C@@H:28]2[O:57][C@H:56]([CH2:58][OH:59])[C@@H:47]([O:48][CH2:49][C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)[C@H:38]([O:39][CH2:40][C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=3)[C@H:29]2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[C@@H:16]([CH2:60][O:61][CH2:62][C:63]2[CH:68]=[CH:67][CH:66]=[CH:65][CH:64]=2)[O:15][CH:10]1[O:11][CH2:12][CH:13]=[CH2:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:69]1(C)[CH:74]=[CH:73][C:72]([S:75](Cl)(=[O:77])=[O:76])=[CH:71][CH:70]=1.N1C=CC=C[CH:81]=1>CN(C)C1C=CN=CC=1>[CH2:1]([O:8][C@@H:9]1[C@@H:18]([O:19][CH2:20][C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=2)[C@H:17]([O:27][C@@H:28]2[O:57][C@H:56]([CH:58]([S:75]([C:72]3[C:73]([CH3:81])=[CH:74][CH:69]=[CH:70][CH:71]=3)(=[O:76])=[O:77])[OH:59])[C@@H:47]([O:48][CH2:49][C:50]3[CH:51]=[CH:52][CH:53]=[CH:54][CH:55]=3)[C@H:38]([O:39][CH2:40][C:41]3[CH:42]=[CH:43][CH:44]=[CH:45][CH:46]=3)[C@H:29]2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[C@@H:16]([CH2:60][O:61][CH2:62][C:63]2[CH:64]=[CH:65][CH:66]=[CH:67][CH:68]=2)[O:15][CH:10]1[O:11][CH2:12][CH:13]=[CH2:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 1049PyridineHCID 73974-Toluenesulfonyl chlorideHCID 86602917HCID 86602917, compound

Product 1

HCID 86602916HCID 86602916, compoundYield 74%

Reagents, catalysts & solvents 1

HCID 142844-(Dimethylamino)pyridineCatalyst

Procedure

The compound (37.8 g, 41.0 mmol) synthesized in Example 2 (2c) was dissolved in pyridine (300 mL) and p-toluenesulfonyl chloride (15.6 g, 82.0 mmol) and 4-dimethylaminopyridine (1.0 g, 0.82 mmol) were added thereto, followed by stirring of the mixture at room temperature for 13 hours. After the solvent was distilled off under reduced pressure, the residue was poured to 10% aqueous hydrochloric acid solution (50 mL) and ethyl acetate (200 mL) and the organic layer was washed with 10% aqueous hydrochloric acid solution (50 mL), saturated aqueous sodium hydrogencarbonate solution (20 mL) and saturated brine (20 mL) and dried with anhydrous sodium sulfate, followed by distilling off of the solvent under reduced pressure. The residue was purified using silica gel flash column chromatography (hexane:ethyl acetate, 5:1-3:1, V/V) to obtain the desired title compound (32.6 g, yield 74%) as a yellow oil.

Workup

  1. distillationAfter the solvent was distilled off under reduced pressure
  2. additionthe residue was poured to 10% aqueous hydrochloric acid solution (50 mL) and ethyl acetate (200 mL)
  3. washthe organic layer was washed with 10% aqueous hydrochloric acid solution (50 mL), saturated aqueous sodium hydrogencarbonate solution (20 mL) and saturated brine (20 mL)
  4. dry with materialdried with anhydrous sodium sulfate
  5. distillationby distilling off of the solvent under reduced pressure
  6. customThe residue was purified

Sources & evidence

ORD record
ord-fea5a93c64f648949d8bd6e808b9fcb6
Source dataset
uspto-grants-2008_04
Patent number
US07361744B2

Reaction notes

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