methyl 3-benzamido-2-hydroxybenzoate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 5.8 ml of CCl4 in 5 ml of acetonitrile were added to 30 mmol of the compound from Example XIV, 30 mmol of benzoic acid, 50 mmol of triphenylphosphine and 120 mmol of triethylamine in 100 ml of acetonitrile at 3° C. under argon in the course of 15 min and the mixture was stirred at room temperature for 20 hours and concentrated, diethyl ether was added to the residue, the solid was filtered off with suction, the filtrate was concentrated and the residue was separated on silica gel. M.p.: 77° C. (white needles) concentrated diethyl ether was added to the residue the solid was filtered off with suction the filtrate was concentrated the residue was separated on silica gel

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 20 mmol of methyl 3-amino-2-hydroxy-benzoate were stirred at room temperature in toluene with 20 mmol of benzoyl chloride for 4 hours with the addition of dimethylaniline, the mixture was concentrated and the residue was recrystallized from EtOH. M.p.: 105° C. the mixture was concentrated the residue was recrystallized from EtOH

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 20 mmol of methyl 3-amino-2-hydroxy-benzoate were stirred at room temperature in toluene with 20 mmol of benzoyl chloride for 4 hours with the addition of dimethylaniline, the mixture was concentrated and the residue was recrystallized from EtOH. M.p.: 105° C. the mixture was concentrated the residue was recrystallized from EtOH