Water → (4-(6,7-Bis(stearyloxy)-4-thiaheptanoylamino)benzoyl)glutamic acid di-t-butyl ester

HRID 1720818Notes

Reaction equation

HRID 1720818 reaction equation
[C:1]([O:5][C:6](=[O:37])[C@H:7]([CH2:28][CH2:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[NH:8][C:9](=[O:27])[C:10]1[CH:15]=[CH:14][C:13]([NH:16][C:17](=[O:26])[CH2:18][CH2:19][S:20][CH2:21][CH:22]([OH:25])[CH2:23][OH:24])=[CH:12][CH:11]=1)([CH3:4])([CH3:3])[CH3:2].CN([C:41]1[CH:46]=[CH:45][CH:44]=[CH:43]N=1)C.O>C(Cl)(Cl)Cl.C(N(CC)CC)C.C(Cl)CCCCCCCCCCCCCCCCC>[C:1]([O:5][C:6](=[O:37])[C@H:7]([CH2:28][CH2:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[NH:8][C:9](=[O:27])[C:10]1[CH:11]=[CH:12][C:13]([NH:16][C:17](=[O:26])[CH2:18][CH2:19][S:20][CH2:21][CH:22]([O:25][CH2:43][CH2:44][CH2:45][CH2:46][CH2:41][CH2:43][CH2:44][CH2:45][CH2:46][CH2:41][CH2:43][CH2:44][CH2:45][CH2:46][CH2:41][CH2:6][CH2:7][CH3:28])[CH2:23][O:24][CH2:41][CH2:46][CH2:45][CH2:44][CH2:43][CH2:43][CH2:44][CH2:45][CH2:46][CH2:41][CH2:43][CH2:44][CH2:45][CH2:46][CH2:41][CH2:2][CH2:1][CH3:3])=[CH:14][CH:15]=1)([CH3:4])([CH3:3])[CH3:2]

Participants

7

Reactant 3

HCID 962WaterHCID 218852-DimethylaminopyridineHCID 10602544HCID 10602544, compound

Product 1

HCID 53695392(4-(6,7-Bis(stearyloxy)-4-thiaheptanoylamino)benzoyl)glutamic acid di-t-butyl esterYield 76%

Reagents, catalysts & solvents 3

HCID 6212ChloroformSolventHCID 8471TriethylamineSolventHCID 188151-ChlorooctadecaneSolvent

Procedure

To a solution of (4-(6,7-dihydroxy-4-thiaheptanoylamino)benzoyl)glutamic acid di-t-butyl ester as obtained in Reference Example 6 (50 mg) in chloroform (1 ml), triethylamine (0.258 ml), stearyl chloride (0.25 ml) and dimethylaminopyridine (1 mg) were added, followed by stirring at room temperature for 24 hours. After addition of water, the reaction mixture was extracted with ethyl acetate. The extract was washed with a 5% aqueous solution of citric acid, a saturated aqueous solution of sodium hydrogen carbonate and saturated saline, and dried over anhydrous sodium sulfate, and the solvent was distilled off. The resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to yield the title compound (75 mg, yield 76%) as a wax-like substance.

Workup

  1. additionwere added
  2. extractionthe reaction mixture was extracted with ethyl acetate
  3. washThe extract was washed with a 5% aqueous solution of citric acid
  4. dry with materiala saturated aqueous solution of sodium hydrogen carbonate and saturated saline, and dried over anhydrous sodium sulfate
  5. distillationthe solvent was distilled off
  6. customThe resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1)

Sources & evidence

ORD record
ord-fa5a89b098134556888f763b79342938
Source dataset
uspto-grants-1996_04
Patent number
US05506267

Reaction notes

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