Réaction #49209

Équation de réaction

EtOAc

pyridine

compound 89

Carbonic acid 10,13-dimethyl-17-(1-methyl-3-octadecylcarbamoyl-propyl)-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester 2,5-dioxo-pyrrolidin-1-yl ester

Amine

6-Amino-1-{2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-pyrrolidin-1-yl}-hexan-1-one

→

Compound 90

(6-{2-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-pyrrolidin-1-yl}-6-oxo-hexyl)-carbamic acid 10,13-dimethyl-17-(1-methyl-3-octadecylcarbamoyl-propyl)-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester

Solvants

dichloromethane

dichloromethane

Conditions de réaction

Traitement

1. 1
   Autrewas brought to ambient temperature
2. 2
   Lavagewashed with saturated NaHCO3, water
3. 3
   SéchageThe organic layer is dried over sodium sulfate
4. 4
   Filtrationfiltered
5. 5
   Concentrationconcentrated under vacuum
6. 6
   Autreto afford the crude product

Mode opératoire

Amine 5 (4.22 g, 7.9 mmol) is dissolved in anhydrous dichloromethane (25 mL) and cooled to 0° C. To the solution are added pyridine (10 mL) and compound 89 (9.3 g, 7.9 mmol) successively. The reaction temperature was brought to ambient temperature and stirred further. The completion of the reaction is ascertained by TLC (EtOAc). The reaction mixture is diluted with dichloromethane and washed with saturated NaHCO3, water followed by brine. The organic layer is dried over sodium sulfate, filtered and concentrated under vacuum to afford the crude product. Compound 90 is obtained as a white solid after column chromatography over silica gel.

Source