(S)-(-)-4-异丁基氧氮杂环戊烷-2,5-二酮

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound is prepared by the procedure of Example 262 using 3.93 g of L-leucine, 2.7 ml of diphosgene, 0.075 g of activated carbon, and 40 ml of dry tetrahydrofuran to give 2.74 g of the desired product.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound is prepared by the procedure of Example 262 using 3.93 g of L-leucine, 2.7 ml of diphosgene, 0.075 g of activated carbon, and 40 ml of dry tetrahydrofuran to give 2.74 g of the desired product.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound is prepared by the procedure of Example 262 using 3.93 g of L-leucine, 2.7 ml of diphosgene, 0.075 g of activated carbon, and 40 ml of dry tetrahydrofuran to give 2.74 g of the desired product.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound is prepared by the procedure of Example 262 using 3.93 gof L-leucine, 2.7 ml of diphosgene, 0.075 g of activated carbon, and 40 ml of dry tetrahydrofuran to give 2.74 g of the desired product.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound is prepared by the procedure of Example 262 using 3.93 g of L-leucine, 2.7 ml of diphosgene, 0.075 g of activated carbon, and 40 ml of dry tetrahydrofuran to give 2.74 g of the desired product.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound is prepared by the procedure of Example 262 using 3.93 g of L-leucine, 2.7 ml of diphosgene, 0.075 g of activated carbon, and 40 ml of dry tetrahydrofuran to give 2.74 g of the desired product.