HCID 86610291, compound → HCID 178447594, compound

HRID 734946Notes

Reaction equation

HRID 734946 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].[CH3:12][CH:13]([CH3:33])[CH2:14][C:15]([O:17][CH:18]([O:22][C:23](ON1C(=O)CCC1=O)=[O:24])[CH:19]([CH3:21])[CH3:20])=[O:16]>CC(OC)(C)C.CC(C)=O.O>[CH3:12][CH:13]([CH3:33])[CH2:14][C:15]([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])[CH:19]([CH3:20])[CH3:21])=[O:16]

Participants

4

Reactant 2

HCID 86610291HCID 86610291, compoundHCID 178511262HCID 178511262, compound

Product 1

HCID 178447594HCID 178447594, compoundYield 12%

Reagents, catalysts & solvents 1

HCID 86610273MTBE acetone waterSolvent

Procedure

Following the general nucleophilic carbamoylation procedure, tranexamic acid (472 mg, 3.0 mmol) and 1-[(2,5-dioxopyrrolidinyl)oxycarbonyloxy]-2-methylpropyl 3-methylbutanoate (558 mg, 1.77 mmol) were reacted in the MTBE/acetone/water mixture (16 mL) to yield the title compound 46 (75 mg, 12% yield) as a white powder after work-up and mass-guided preparative HPLC purification. 1H NMR (400 MHz, DMSO-d6): δ=0.82-0.94 (br. m, 14H), 1.17-1.37 (m, 3H), 1.65-1.73 (br. m, 2H), 1.83-2.01 (br. m, 4H), 2.09 (tt, J=12.4, 3.6 Hz, 1H), 2.17 (d, J=6.6 Hz, 2H), 2.74-2.87 (br. m, 2H), 6.45 (d, J=4.8 Hz, 1H), 7.40 (t, J=6.0 Hz, 1H), 11.97 (br. s, 1H). MS (ESI) m/z 380.23 (M+Na)+; 356.18 (M−H)−.

Sources & evidence

ORD record
ord-ca87f6075acd45ecb490144fe2225b41
Source dataset
uspto-grants-2009_09
Patent number
US07592369B2

Reaction notes

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