HCID 86610284, compound → HCID 178453629, compound

HRID 898393Notes

Reaction equation

HRID 898393 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]([CH3:32])[C:14]([O:16][CH:17]([O:21][C:22](ON1C(=O)CCC1=O)=[O:23])[CH2:18][CH2:19][CH3:20])=[O:15]>CC(OC)(C)C.CC(C)=O.O>[CH3:32][CH:13]([CH3:12])[C:14]([O:16][CH:17]([O:21][C:22]([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:23])[CH2:18][CH2:19][CH3:20])=[O:15]

Participants

4

Reactant 2

HCID 86610284HCID 86610284, compoundHCID 178511262HCID 178511262, compound

Product 1

HCID 178453629HCID 178453629, compoundYield 13%

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 2-methylpropanoate (700 mg, 2.3 mmol) were reacted in the MTBE/acetone/water mixture (16 mL) to yield the title compound 36 (100 mg, 13% 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), 1.08 (d, J=4.0 Hz, 3H), 1.10 (d, J=4.0 Hz, 3H), 1.21-1.41 (br. m, 5H), 1.68-1.73 (m, 4H), 1.89-1.91 (m, 2H), 2.13 (tt, J=12, 3.2 Hz, 1H), 2.79-2.88 (m, 3H), 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-4312630c6fb141f19e4ecf96853bb543
Source dataset
uspto-grants-2008_04
Patent number
US07351740B2

Reaction notes

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