Tert-Butylamine → Boc-Hyp-NH-tBu

HRID 2269649Notes

Reaction equation

HRID 2269649 reaction equation
[C:1]([N:8]1[CH2:16][C@H:14]([OH:15])[CH2:13][C@H:9]1[C:10]([OH:12])=O)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].[C:17]([NH2:21])([CH3:20])([CH3:19])[CH3:18].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl>ClCCl>[N:8]1([C:1]([O:3][C:4]([CH3:5])([CH3:6])[CH3:7])=[O:2])[CH2:16][C@H:14]([OH:15])[CH2:13][C@H:9]1[C:10]([NH:21][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:12]

Participants

6

Reactant 4

HCID 6385Tert-ButylamineHCID 757711-HydroxybenzotriazoleHCID 88804(2S,4R)-4-hydroxy-1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidine-2-carboxylic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

Product 1

HCID 10334194Boc-Hyp-NH-tBuYield 189%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In a dichloromethane solution containing 5.1 g of N-Boc-hydroxyproline (Boc-Hyp-OH), 0.35 g of tert-butylamine, 7.4 g of HOBt and 6.0 g of EDC hydrochloride were added under ice cooling and the resultant mixture was stirred overnight at room temperature. The reaction mixture was treated similarly to that in Example 144 (Process 2) to give 2.59 g of the title compound.

Workup

  1. additionwere added under ice cooling
  2. additionThe reaction mixture was treated similarly to that in Example 144 (Process 2)

Sources & evidence

ORD record
ord-16f3afdf35f64f9ebb9c807e7d6e60f0
Source dataset
uspto-grants-2001_12
Patent number
US06329502B1

Reaction notes

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