Triethylamine → [1-(N-phenylmethoxycarbonylcarbamimidoyl)pyrrolidin-3-yl]methyl methanesulfonate

HRID 1585488Notes

Reaction equation

HRID 1585488 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C:12]([N:14]1[CH2:18][CH2:17][CH:16]([CH2:19][OH:20])[CH2:15]1)=[NH:13])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:28][S:29](Cl)(=[O:31])=[O:30]>C(OCC)(=O)C.CCCCCCC.C(OCC)C>[CH2:1]([O:8][C:9]([NH:11][C:12]([N:14]1[CH2:18][CH2:17][CH:16]([CH2:19][O:20][S:29]([CH3:28])(=[O:31])=[O:30])[CH2:15]1)=[NH:13])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 140379085benzyl N-[3-(hydroxymethyl)pyrrolidine-1-carboximidoyl]carbamate

Product 1

HCID 140379087[1-(N-phenylmethoxycarbonylcarbamimidoyl)pyrrolidin-3-yl]methyl methanesulfonateYield 50%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 21899848Ethylacetate heptaneSolvent

Conditions

Temperature
0 °C

Procedure

0.7 g (2.53 mmole) (3RS)-1-(N-benzyloxycarbonylamidino)-3-hydroxymethyl pyrrolidine and 0.70 ml (5.05 mmole) triethylamine was dissolved in 15 ml diethyl ether/CH2Cl2 1/1 and the mixture was cooled to 0° C. 0.25 ml (3.29 mmole) methanesulphonyl chloride in 3 ml diethyl ether was slowly added and the reaction mixture was stirred at 0° C. for three hours. The solvent was evaporated and the residue was dissolved in ethyl acetate and extracted with a 0.3 M KHSO4 -solution. The water layer was washed once with CH2CH2The water layer was made neutral with 10 M NaOH-solution and extracted twice with CH2Cl2. The combined organic layer was dried (Na2SO4), filtered and evaporated to yield 0.450 g (50%) of the title compound.

Workup

  1. customThe solvent was evaporated
  2. dissolutionthe residue was dissolved in ethyl acetate
  3. extractionextracted with a 0.3 M KHSO4 -solution
  4. washThe water layer was washed once with CH2CH2The water layer
  5. extractionextracted twice with CH2Cl2
  6. dry with materialThe combined organic layer was dried (Na2SO4)
  7. filtrationfiltered
  8. customevaporated

Sources & evidence

ORD record
ord-d82753bf0ee040a495b07c5ebf744173
Source dataset
uspto-grants-1999_08
Patent number
US05939392

Reaction notes

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