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3(R)-(t-butoxycarbonylamino)-N-(2,2-dimethyl-1(S)-(methylcarbamoyl)propyl)succinamic acid allyl ester → 3(R)-arnino-N-(2,2-dimethyl-1(S)-(methylcarbamoyl)propyl)succinamic acid allyl ester trifluoroacetate salt

HRID 382150
Notes
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Reaction equation

HRID 382150 reaction equation
[F:1][C:2]([F:7])([F:6])[C:3]([OH:5])=[O:4].[CH2:8]([O:15][C:16](=[O:32])[CH2:17][C@@H:18]([NH2:31])[C:19]([NH:21][C@H:22]([C:27](=[O:30])[NH:28][CH3:29])[C:23]([CH3:26])([CH3:25])[CH3:24])=[O:20])[C:9]1C=CC=C[CH:10]=1.C(OC(=O)C[C@@H](NC(OC(C)(C)C)=O)C(N[C@H](C(=O)NC)C(C)(C)C)=O)C=C>CO.C(Cl)(Cl)Cl>[F:1][C:2]([F:7])([F:6])[C:3]([OH:5])=[O:4].[CH2:8]([O:15][C:16](=[O:32])[CH2:17][C@@H:18]([NH2:31])[C:19]([NH:21][C@H:22]([C:27](=[O:30])[NH:28][CH3:29])[C:23]([CH3:24])([CH3:25])[CH3:26])=[O:20])[CH:9]=[CH2:10]
ParticipantsProcedureSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 544245593(R)-(t-butoxycarbonylamino)-N-(2,2-dimethyl-1(S)-(methylcarbamoyl)propyl)succinamic acid allyl esterHCID 700814343(r)-Amino-n-(2,2-dimethyl-1(s)-(methylcarbamoyl)propyl)succinamic acid benzyl ester trifluoroacetate salt

Product 1

HCID 865844093(R)-arnino-N-(2,2-dimethyl-1(S)-(methylcarbamoyl)propyl)succinamic acid allyl ester trifluoroacetate saltYield 87%

Reagents, catalysts & solvents 1

HCID 21584188
Chloroform methanol
Solvent

Procedure

As described in Example 1(b) for the preparation of 3(R)-amino-N-(2,2-dimethyl-1(S)-(methylcarbamoyl)propyl)succinamic acid benzyl ester trifluoroacetate salt, crude 3(R)-(t-butoxycarbonylamino)-N-(2,2-dimethyl-1(S)-(methylcarbamoyl)propyl)succinamic acid allyl ester was deprotected after 2 hours. Flash column chromatography with 0.5% TFA17% MeOH/CHCl3 gave 2.46 g (87%) of 3(R)-amino-N-(2,2-dimethyl-1(S)-(methylcarbamoyl)propyl)succinamic acid allyl ester trifluoroacetate salt as a colorless foam.

Sources & evidence

ORD record
ord-109dfff9f41f4b44ac82d9e026f668b9
Source dataset
uspto-grants-2001_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06306892B1

Reaction notes

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On this pageParticipantsProcedureSources & evidenceReaction notes