(2R)-2-amino-3,3-dimethylbutanamide

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: In accordance with the process described in JP Patent Application Laying Open (Kokai) No. 62-55097, Enterobacter cloacae N-7901 (FERM BP-873) was cultured. 1 L of culture solution was centrifuged, and the wet cells were then suspended in distilled water to prepare a 800 g cell suspension. 200 g of D,L-tert-leucine amide was dissolved in this suspension, and the solution was then allowed to react at 40° C. for 52 hours. After the reaction, cells were removed by centrifugation and 970 g of an aqueous solution containing 10% by mass each of L-tert-leucine and D-tert-leucine amide was obtained. to prepare a 800 g cell suspension to react at 40° C. for 52 hours After the reaction, cells were removed by centrifugation and 970 g of an aqueous solution containing 10% by mass each of L-tert-leucine

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: In the same way as in example VIII, an incubation was carried out with DL-tertiary leucine amide. Analysis of the remaining reaction mixture after 8 hours showed that both L-tertiary leucine and D-tertiary leucine amide with an e.e. of ≥99% were present in the reaction mixture. Analysis of the remaining reaction mixture after 8 hours

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: In the same way as in example VIII, an incubation was carried out with DL-tertiary leucine amide. Analysis of the remaining reaction mixture after 8 hours showed that both L-tertiary leucine and D-tertiary leucine amide with an e.e. of ≥99% were present in the reaction mixture. Analysis of the remaining reaction mixture after 8 hours

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: In accordance with the process described in JP Patent Application Laying Open (Kokai) No. 62-55097, Enterobacter cloacae N-7901 (FERM BP-873) was cultured. 1 L of culture solution was centrifuged, and the wet cells were then suspended in distilled water to prepare a 800 g cell suspension. 200 g of D,L-tert-leucine amide was dissolved in this suspension, and the solution was then allowed to react at 40° C. for 52 hours. After the reaction, cells were removed by centrifugation and 970 g of an aqueous solution containing 10% by mass each of L-tert-leucine and D-tert-leucine amide was obtained. to prepare a 800 g cell suspension to react at 40° C. for 52 hours After the reaction, cells were removed by centrifugation and 970 g of an aqueous solution containing 10% by mass each of L-tert-leucine

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: In the same way as in example VIII, an incubation was carried out with DL-tertiary leucine amide. Analysis of the remaining reaction mixture after 8 hours showed that both L-tertiary leucine and D-tertiary leucine amide with an e.e. of ≥99% were present in the reaction mixture. Analysis of the remaining reaction mixture after 8 hours