Réaction #44947

ord-e12423b6c0cc4975b07fb854a3c9a2cd

Équation de réaction

$C/C(=C\C(=O)OCCCCCCCCC(=O)O)C[C@@H]1OC[C@H](C[C@@H]2O[C@H]2[C@@H](C)[C@H](C)O)[C@@H](O)[C@H]1O$

Pseudomonic acid

Calcium oxide

$C/C(=C\C(=O)OCCCCCCCCC(=O)O)C[C@@H]1OC[C@H](C[C@@H]2O[C@H]2[C@@H](C)[C@H](C)O)[C@@H](O)[C@H]1O$

pseudomonic acid

→

$C/C(=C\C(=O)OCCCCCCCCC(=O)[O-])C[C@@H]1OC[C@H](C[C@@H]2O[C@H]2[C@@H](C)[C@H](C)O)[C@@H](O)[C@H]1O.C/C(=C\C(=O)OCCCCCCCCC(=O)[O-])C[C@@H]1OC[C@H](C[C@@H]2O[C@H]2[C@@H](C)[C@H](C)O)[C@@H](O)[C@H]1O.O.O.[Ca+2]$

Mupirocin calcium dihydrate

Rendement 51.7%

Réactifs

$C/C(=C\C(=O)OCCCCCCCCC(=O)O)C[C@@H]1OC[C@H](C[C@@H]2O[C@H]2[C@@H](C)[C@H](C)O)[C@@H](O)[C@H]1O$

Pseudomonic acid

Calcium oxide

$C/C(=C\C(=O)OCCCCCCCCC(=O)O)C[C@@H]1OC[C@H](C[C@@H]2O[C@H]2[C@@H](C)[C@H](C)O)[C@@H](O)[C@H]1O$

pseudomonic acid

Réactifs

Aucun

Solvants

isobutyl methyl ketone

water

Conditions de réaction

Température

5°CELSIUS

Conditions détaillées

See reaction.notes.procedure_details.

Traitement

1
Autrethe phases were separated
2
workup.DISTILLATIONThe volume of the aqueous phase was reduced to 40 ml by vacuum distillation
3
workup.WAITafter standing for 15 hours
4
Filtrationthe crystalline product was filtered
5
Lavagewashed with cooled water (10 ml)
6
AutreThe product was then dried in an air
7
Autreat RT

Mode opératoire

Pseudomonic acid (10 g) was dissolved in isobutyl methyl ketone (120 ml). Calcium oxide (0.57 g) was suspended in water (68 ml), and added to the solution of pseudomonic acid. The mixture was stirred for one hour, and the phases were separated. The volume of the aqueous phase was reduced to 40 ml by vacuum distillation. The mixture was cooled to 5° C., and after standing for 15 hours, the crystalline product was filtered and washed with cooled water (10 ml). The product was then dried in an air circulated oven at RT. Mupirocin calcium dihydrate (3.7 g, 35%) was obtained.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US07737177B2uspto-grants-2010_06