HCID 54574361, compound → HCID 178452033, compound

Participants

Reaction Steps

To a solution of tert-butyl (3S)-3-(4-aminobutanoylamino)-1-pyrrolidinecarboxylate (1.36 g) in anhydrous tetrahydrofuran (30 ml), 4-nitrobenzyl [(4-nitrobenzyloxy)carbonylimino-pyrazol-1-ylmethyl]carbamate (1.60 g) was added under ice cooling. The resulting (mixture was then treated in a similar manner to that described in Referential Example 16-(1), whereby the title compound (2.50 g) was obtained as an amorphous substance.

Provenance & Evidence