1-({[(2,5-Dioxopyrrolidin-1-yl)oxy]carbonyl}oxy)butyl butanoate → HCID 178454702, compound

HRID 898392Notes

Reaction equation

HRID 898392 reaction equation
[CH2:1]1[CH2:6][C@H:5]([C:7]([OH:9])=[O:8])[CH2:4][CH2:3][C@H:2]1[CH2:10][NH2:11].[C:12]([O:17][CH:18]([O:22][C:23](ON1C(=O)CCC1=O)=[O:24])[CH2:19][CH2:20][CH3:21])(=[O:16])[CH2:13][CH2:14][CH3:15]>CC(OC)(C)C.CC(C)=O.O>[C:12]([O:17][CH:18]([O:22][C:23]([NH:11][CH2:10][C@H:2]1[CH2:3][CH2:4][C@H:5]([C:7]([OH:9])=[O:8])[CH2:6][CH2:1]1)=[O:24])[CH2:19][CH2:20][CH3:21])(=[O:16])[CH2:13][CH2:14][CH3:15]

Participants

4

Reactant 2

HCID 714270211-({[(2,5-Dioxopyrrolidin-1-yl)oxy]carbonyl}oxy)butyl butanoateHCID 178511262HCID 178511262, compound

Product 1

HCID 178454702HCID 178454702, compoundYield 27%

Reagents, catalysts & solvents 1

HCID 86610273MTBE acetone waterSolvent

Procedure

Following the general nucleophilic carbamoylation procedure, tranexamic acid (800 mg, 5 mmol) and 1-[(2,5-dioxopyrrolidinyl)oxycarbonyloxy]butyl butanoate (700 mg, 2.3 mmol) were reacted in the MTBE/acetone/water mixture (16 mL) to yield the title compound 35 (210 mg, 27% yield) as a white powder after work-up and mass-guided preparative HPLC purification. 1H NMR (400 MHz, DMSO-d6): δ=0.87-0.95 (m, 8H), 1.22-1.41 (br. m, 5H), 1.56 (m, 2H), 1.68-1.73 (m, 4H), 1.89-1.92 (m, 2H), 2.13 (tt, J=12, 3.2 Hz, 1H), 2.30 (t, J=7.2 Hz, 2H), 6.65 (t, J=5.6 Hz, 1H), 7.45 (t, J=6.0 Hz, 1H), 12.04 (s, 1H). MS (ESI) m/z 366.21 (M+Na)+; 342.16 (M−H)−.

Sources & evidence

ORD record
ord-9301fc42ac1f42ed946c4246a5217e22
Source dataset
uspto-grants-2008_04
Patent number
US07351740B2

Reaction notes

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