Réaction #7695

Équation de réaction

NaHMDS

(R)-N-benzoyl-3-methyl-N′-(2-cyano-acetyl)piperazine

2-chlorobenzothiazole

→

(R)-N-(benzoyl)-3-methyl-N′-[(benzothiazol-2-yl)-2-cyanoacetyl]-piperazine

Rendement 6.5%

Solvants

THF

Conditions de réaction

Traitement

1. 1
   Autre4 ml of solution was separated
2. 2
   Autrequenched with MeOH
3. 3
   AutreAfter solvents were removed under vaccum
4. 4
   Autrethe residue was purified

Mode opératoire

NaHMDS (1.48 ml, 1M in THF) was added into a solution of (R)-N-benzoyl-3-methyl-N′-(2-cyano-acetyl)piperazine (190 mg) and 2-chlorobenzothiazole (100 mg) in THF (10 ml). After the reaction was stirred for 10 hours, 4 ml of solution was separated and quenched with MeOH. After solvents were removed under vaccum, the residue was purified using Shimadzu automated preparative HPLC System to give (R)-N-(benzoyl)-3-methyl-N′-[(benzothiazol-2-yl)-2-cyanoacetyl]-piperazine (15.4 mg).

Source