Reaction #1273

ord-1c6890bb15744174b710f1c89858ac54

Reaction equation

CCCCOC(=O)C(CCc1c[n+](CCCCC(NC(=O)OCc2ccccc2)C(=O)OC(C)(C)C)cc(O)c1CC(NC(=O)OCc1ccccc1)C(=O)OC(C)(C)C)NC(=O)OCc1ccccc1
pyridinium salt
CCCCOC(=O)C(CCc1c[n+](CCCCC(NC(=O)OCc2ccccc2)C(=O)OC(C)(C)C)cc(O)c1CC(NC(=O)OCc1ccccc1)C(=O)OC(C)(C)C)NC(=O)OCc1ccccc1
3-hydroxy-1-(5-benzoxycarbonylamino-5-t-butoxycarbonyl-pentyl)-4-(2-benzyloxycarbonylamino-2-t-butoxycarbonyl-ethyl)-5-(3-benzyloxycarbonylamino-3-butoxycarbonylpropyl) pyridinium
Br
HBr
→
N[C@H](CCCC[n+]1cc(O)c(C[C@H](N)C(=O)O)c(CC[C@H](N)C(=O)O)c1)C(=O)[O-]
deoxypyridinoline

Reactants

CCCCOC(=O)C(CCc1c[n+](CCCCC(NC(=O)OCc2ccccc2)C(=O)OC(C)(C)C)cc(O)c1CC(NC(=O)OCc1ccccc1)C(=O)OC(C)(C)C)NC(=O)OCc1ccccc1
pyridinium salt
CCCCOC(=O)C(CCc1c[n+](CCCCC(NC(=O)OCc2ccccc2)C(=O)OC(C)(C)C)cc(O)c1CC(NC(=O)OCc1ccccc1)C(=O)OC(C)(C)C)NC(=O)OCc1ccccc1
3-hydroxy-1-(5-benzoxycarbonylamino-5-t-butoxycarbonyl-pentyl)-4-(2-benzyloxycarbonylamino-2-t-butoxycarbonyl-ethyl)-5-(3-benzyloxycarbonylamino-3-butoxycarbonylpropyl) pyridinium
Br
HBr

Reagents

None

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Procedure

reacting the pyridinium salt prepared in step (c) with HBr in an appropriate solvent to provide deoxypyridinoline.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05723619uspto-grants-1998_03