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Trifluoroacetic acid → HCID 23002643, compound

HRID 398321
Notes
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Reaction equation

HRID 398321 reaction equation
C([NH:8][CH:9]([CH2:13][C:14]1[CH:19]=[CH:18][C:17]([C:20]#[N:21])=[CH:16][CH:15]=1)[C:10]([OH:12])=O)(OC(C)(C)C)=O.[NH:22]1[CH2:26][CH2:25][CH2:24][CH2:23]1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.[C:54]([OH:60])([C:56]([F:59])([F:58])[F:57])=[O:55]>CN(C=O)C.C(Cl)Cl.CCN(CC)CC>[F:57][C:56]([F:59])([F:58])[C:54]([OH:60])=[O:55].[NH2:8][CH:9]([CH2:13][C:14]1[CH:15]=[CH:16][C:17]([C:20]#[N:21])=[CH:18][CH:19]=1)[C:10]([N:22]1[CH2:26][CH2:25][CH2:24][CH2:23]1)=[O:12]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 6422Trifluoroacetic acidHCID 31268PyrrolidineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 43933462-Tert-butoxycarbonylamino-3-(4-cyano-phenyl)-propionic acid

Product 1

HCID 23002643HCID 23002643, compound

Reagents, catalysts & solvents 3

HCID 6228
Dimethylformamide
Solvent
HCID 6344DichloromethaneSolvent
HCID 8471TriethylamineSolvent

Procedure

4.06 g of 2-[N-(BOc)amino]-3-(4-cyanophenyl)-propionic acid are mixed with 1.15 ml of pyrrolidine and 7.5 g of BOP in 20 ml of DMF; the mixture is left stirring for 2 hours at RT while maintaining at pH=7 by addition of Et3N. After evaporating to dryness, the residue is chromatographed on silica, eluting with a chloroform/methanol mixture (9/0.5; v/v). After evaporating off the solvents, the solid obtained is treated with 20 ml of TFA in 20 ml of DCM for 30 minutes at RT. The solvents are evaporated off and the residue is taken up in ether and then dried in order to obtain 3.95 g of the expected product.

Workup

  1. waitthe mixture is left
  2. customAfter evaporating to dryness
  3. customthe residue is chromatographed on silica
  4. washeluting with a chloroform/methanol mixture (9/0.5
  5. customAfter evaporating off the solvents
  6. customthe solid obtained
  7. customThe solvents are evaporated off
  8. customdried in order

Sources & evidence

ORD record
ord-1d045a649d1c442487b3a8a650a22d72
Source dataset
uspto-grants-2003_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06610882B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes