HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Trifluoroacetic acid → 2(R)-[(3,4-methylendioxybenzyl)-(2,6-dimethyl-4-methoxybenzenesulfonyl)amino]-3-methanesulfonylamino-propionic acid

HRID 1760812
Notes
Print preview

Reaction equation

HRID 1760812 reaction equation
[CH2:1]1[O:38][C:37]2[CH:36]=[CH:35][C:5]([CH2:6][N:7]([S:22]([C:25]3[C:30]([CH3:31])=[CH:29][C:28]([O:32][CH3:33])=[CH:27][C:26]=3[CH3:34])(=[O:24])=[O:23])[C@H:8]([CH2:16][NH:17][S:18]([CH3:21])(=[O:20])=[O:19])[C:9]([O:11]C(C)(C)C)=[O:10])=[CH:4][C:3]=2[O:2]1.FC(F)(F)C(O)=O>FC(F)(F)C(O)=O.C(Cl)Cl>[CH2:1]1[O:38][C:37]2[CH:36]=[CH:35][C:5]([CH2:6][N:7]([S:22]([C:25]3[C:26]([CH3:34])=[CH:27][C:28]([O:32][CH3:33])=[CH:29][C:30]=3[CH3:31])(=[O:23])=[O:24])[C@H:8]([CH2:16][NH:17][S:18]([CH3:21])(=[O:20])=[O:19])[C:9]([OH:11])=[O:10])=[CH:4][C:3]=2[O:2]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 18337582tert-butyl 2(R)-[(3,4-methylendioxybenzyl)-(2,6-dimethyl-4-methoxybenzenesulfonyl)amino]-3-methanesulfonylamino-propionate

Product 1

HCID 183375492(R)-[(3,4-methylendioxybenzyl)-(2,6-dimethyl-4-methoxybenzenesulfonyl)amino]-3-methanesulfonylamino-propionic acidYield 99.1%

Reagents, catalysts & solvents 1

HCID 21863450
Trifluoroacetic acid methylene chloride
Solvent

Procedure

A solution of tert-butyl 2(R)-[(3,4-methylendioxybenzyl)-(2,6-dimethyl-4-methoxybenzenesulfonyl)amino]-3-methanesulfonylamino-propionate (1.37 g, 2 mmol) in 20% trifluoracetic acid-methylene chloride (15 ml) was stirred for 1 hour. Extra trifluoroacetic acid (0.5 ml) was added and stirring continued for two hours. The material was then condensed on the rotary evaporator and the residue was taken up in toluene (40 ml) and again condensed. This procedure was repeated twice (2×40 ml toluene, to remove traces of trifluoracetic acid) to provide 2(R)-[(3,4-methylendioxybenzyl)-(2,6-dimethyl-4-methoxybenzenesulfonyl)amino]-3-methanesulfonylamino-propionic acid as a tan green foamy solid (1.02 g).

Workup

  1. customcondensed
  2. customon the rotary evaporator
  3. customagain condensed
  4. custom(2×40 ml toluene, to remove traces of trifluoracetic acid)

Sources & evidence

ORD record
ord-fd1a1f83e74248739c80343325f527a0
Source dataset
uspto-grants-2005_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06844366B2

Reaction notes

Loading…

On this pageParticipantsProcedureWorkupSources & evidenceReaction notes