piperazin-2-ylmethanol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: Following a procedure similar to that described in Preparation 8, but using 10.0 g of (2S,4S)-4-(4-methoxybenzylthio)-1-(4-nitrobenzyloxycarbonyl)-2-pyrrolidinecarboxylic acid, 4.4 g of N,N'-carbonyldiimidazole and 4.0 g of 2-hydroxymethylpiperazine, 6.9 g of the title compound were obtained, as a powder. that described in Preparation 8

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2 g of 2-hydroxymethylpiperazine, 1 g of 7-chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid and 8 ml of pyridine was heated at 130° C. in a sealed bottle, under argon, overnight. The solvent was removed and the residue adsorbed onto silica gel, then added to a column of flash grade silica gel. The column was eluted with methanol:water (95:5). The product fraction was collected, dissolved in methanoldichloromethane and converted to the hydrochloride salt, mp>275° C. The solvent was removed added to a column of flash grade silica gel The column was eluted with methanol:water (95:5) The product fraction was collected dissolved in methanoldichloromethane

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

Procedure: Following a procedure similar to that described in Preparation 8, but using 10.0 g of (2S,4S)-4-(4-methoxybenzylthio)-1-(4-nitrobenzyloxycarbonyl)-2-pyrrolidinecarboxylic acid, 4.4 g of N,N'-carbonyldiimidazole and 4.0 g of 2-hydroxymethylpiperazine, 6.9 g of the title compound were obtained, as a powder. that described in Preparation 8

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

Procedure: Following a procedure similar to that described in Preparation 8, but using 10.0 g of (2S,4S)-4-(4-methoxybenzylthio)-1-(4-nitrobenzyloxycarbonyl)-2-pyrrolidinecarboxylic acid, 4.4 g of N,N'-carbonyldiimidazole and 4.0 g of 2-hydroxymethylpiperazine, 6.9 g of the title compound were obtained, as a powder. that described in Preparation 8

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

Procedure: B13 was prepared following the procedure reported for B1 using A1 and rac-2-(hydroxymethyl)piperazine. MS (ES) C15H21N7O3S requires: 379. found: 380 (M+H)+. B13 was prepared

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

Procedure: B13 was prepared following the procedure reported for B1 using A1 and rac-2-(hydroxymethyl)piperazine. MS (ES) C15H21N7O3S requires: 379. found: 380 (M+H)+. B13 was prepared

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

Procedure: Following a procedure similar to that described in Preparation 8, but using 10.0 g of (2S,4S)-4-(4-methoxybenzylthio)-1-(4-nitrobenzyloxycarbonyl)-2-pyrrolidinecarboxylic acid, 4.4 g of N,N'-carbonyldiimidazole and 4.0 g of 2-hydroxymethylpiperazine, 6.9 g of the title compound were obtained, as a powder. that described in Preparation 8

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

Procedure: Following a procedure similar to that described in Preparation 8, but using 10.0 g of (2S,4S)-4-(4-methoxybenzylthio)-1-(4-nitrobenzyloxycarbonyl)-2-pyrrolidinecarboxylic acid, 4.4 g of N,N'-carbonyldiimidazole and 4.0 g of 2-hydroxymethylpiperazine, 6.9 g of the title compound were obtained, as a powder. that described in Preparation 8

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2 g of 2-hydroxymethylpiperazine, 1 g of 7-chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid and 8 ml of pyridine was heated at 130° C. in a sealed bottle, under argon, overnight. The solvent was removed and the residue adsorbed onto silica gel, then added to a column of flash grade silica gel. The column was eluted with methanol:water (95:5). The product fraction was collected, dissolved in methanoldichloromethane and converted to the hydrochloride salt, mp>275° C. The solvent was removed added to a column of flash grade silica gel The column was eluted with methanol:water (95:5) The product fraction was collected dissolved in methanoldichloromethane

Conditions: temp:0.00; pressure:0.00; stir: