تفاعل #1156639

ord-6127116fbb164ad1a4eb469bc0c7d135

معادلة التفاعل

CC(C)C[C@@H](C=O)NC(=O)OC(C)(C)C
Boc-L-leucinal
CC(C)=CCN(c1ccc(OCc2ccccc2)cc1)C1CCNCC1
(4-Benzyloxy-phenyl)-(3-methyl-but-2-enyl)-piperidin-4-yl-amine
CC(=O)O[BH-](OC(C)=O)OC(C)=O.[Na+]
NaBH(OAc)3
CC(C)=CCN(c1ccc(OCc2ccccc2)cc1)C1CCN(C[C@@H](N)CC(C)C)CC1
desired product
المردود 70.3%
CC(C)=CCN(c1ccc(OCc2ccccc2)cc1)C1CCN(C[C@@H](N)CC(C)C)CC1
(S)-[1-(2-Amino-4-methyl-pentyl)-piperidin-4-yl]-(4-benzyloxy-phenyl)-(3-methyl-but-2enyl)-amine
المردود 70.3%

المذيبات

ظروف التفاعل

درجة الحرارة
0°CELSIUS
الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    درجة الحرارةto warm to RT as ice
  2. 2
    workup.STIRRINGstir 4 hours
  3. 3
    غسيلwashed with saturated bicarbonate solution, and brine
  4. 4
    تجفيفdried over Na2SO4
  5. 5
    تركيزconcentrated
  6. 6
    أخرىThe residue was chromatographed on silica gel eluting with 8% MeOH/CH2Cl2

الإجراء التجريبي

Boc-L-leucinal (0.78 g, 3.64 mmol) was treated with a solution of (4-Benzyloxy-phenyl)-(3-methyl-but-2-enyl)-piperidin-4-yl-amine (1.28 g, 3.64 mmol) in CH2Cl2 (36 mL), stirred 15 minutes, cooled to 0° C., and treated with NaBH(OAc)3 (1.16 g, 5.46 mmol). The reaction was allowed to warm to RT as ice melted and stir 4 hours. The reaction was diluted with EtOAc (200 mL), washed with saturated bicarbonate solution, and brine, dried over Na2SO4, and concentrated. The residue was chromatographed on silica gel eluting with 8% MeOH/CH2Cl2 to give 1.15 g (57%) of the desired product (Id).

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US06251918B1uspto-grants-2001_06