Tosyl-L-asparagine → (2S)-6-[[(2S)-4-amino-4-oxo-2-(p-tolylsulfonylamino)butanoyl]amino]-2-[(4-aminophenyl)sulfonyl-isobutyl-amino]hexanoic acid

HRID 397772Notes

Reaction equation

HRID 397772 reaction equation
Cl.[CH2:2]([N:6]([S:16]([C:19]1[CH:24]=[CH:23][C:22]([N+:25]([O-])=O)=[CH:21][CH:20]=1)(=[O:18])=[O:17])[C@H:7]([C:13]([OH:15])=[O:14])[CH2:8][CH2:9][CH2:10][CH2:11][NH2:12])[CH:3]([CH3:5])[CH3:4].[CH3:28][C:29]1[CH:34]=[CH:33][C:32]([S:35]([NH:38][C@H:39]([C:44](O)=[O:45])[CH2:40][C:41](=[O:43])[NH2:42])(=[O:37])=[O:36])=[CH:31][CH:30]=1>>[CH3:28][C:29]1[CH:34]=[CH:33][C:32]([S:35]([NH:38][C@H:39]([C:44]([NH:12][CH2:11][CH2:10][CH2:9][CH2:8][C@H:7]([N:6]([S:16]([C:19]2[CH:24]=[CH:23][C:22]([NH2:25])=[CH:21][CH:20]=2)(=[O:18])=[O:17])[CH2:2][CH:3]([CH3:5])[CH3:4])[C:13]([OH:15])=[O:14])=[O:45])[CH2:40][C:41]([NH2:42])=[O:43])(=[O:36])=[O:37])=[CH:31][CH:30]=1

Participants

3

Reactant 2

HCID 6995570Tosyl-L-asparagineHCID 69107784Nalpha-isobutyl-Nalpha-(4-nitrobenzenesulfonyl)-L-lysine hydrochloride

Product 1

HCID 508570(2S)-6-[[(2S)-4-amino-4-oxo-2-(p-tolylsulfonylamino)butanoyl]amino]-2-[(4-aminophenyl)sulfonyl-isobutyl-amino]hexanoic acid

Procedure

The title compound was prepared from Nα-isobutyl-Nα-(4-nitrobenzenesulfonyl)-L-lysine hydrochloride (400 mg, 1.03 mmol, example 5, step C) as described in general procedure Bc using Nα-(4-methylbenzenesulfonyl)-L-asparagine (286 mg, 1.0 mmol) which was prepared in step A this example. The final product, Nα-isobutyl-Nα-(4-nitrobenzenesulfonyl)-Nε-[N′α-(4-methylbenzenesulfonyl)-L-asparagyl]-L-lysine was subsequently hydrogenolysed following the indications of general procedure E. Purification by HPLC gave the desired material (185 mg, 76%).

Workup

  1. customwas prepared in step A this example
  2. customPurification by HPLC

Sources & evidence

ORD record
ord-74b00c30d40a48cc87a8585122afaadc
Source dataset
uspto-grants-2003_08
Patent number
US06610689B2

Reaction notes

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