Reacción #324597

ord-baa64055c72c46edb4b6fb547eebad34

Ecuación de reacción

CC(=O)O[C@H]1C(=O)[C@@]2(C)[C@H]([C@H](OC(=O)c3ccccc3)[C@]3(O)C[C@H](OC(=O)[C@H](O)[C@@H](NC(=O)c4ccccc4)c4ccccc4)C(C)=C1C3(C)C)[C@]1(OC(C)=O)CO[C@@H]1C[C@@H]2O
Paclitaxel
CC(C)(NCC(O)COc1cccc2[nH]c3ccccc3c12)c1ccc(N=[N+]=[N-])cc1.CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)O
7
CC(C)(NCC(O)COc1cccc2[nH]c3ccccc3c12)c1ccc(N=[N+]=[N-])cc1.CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)O
Fmoc-Leu PABC
→
CC(=O)O[C@H]1C(=O)[C@@]2(C)[C@H]([C@H](OC(=O)c3ccccc3)[C@]3(O)C[C@H](OC(=O)[C@H](O)[C@@H](NC(=O)c4ccccc4)c4ccccc4)C(C)=C1C3(C)C)[C@]1(OC(C)=O)CO[C@@H]1C[C@@H]2O.CC(C)(NCC(O)COc1cccc2[nH]c3ccccc3c12)c1ccc(N=[N+]=[N-])cc1.CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)O
8
Rendimiento 93.0%
CC(=O)O[C@H]1C(=O)[C@@]2(C)[C@H]([C@H](OC(=O)c3ccccc3)[C@]3(O)C[C@H](OC(=O)[C@H](O)[C@@H](NC(=O)c4ccccc4)c4ccccc4)C(C)=C1C3(C)C)[C@]1(OC(C)=O)CO[C@@H]1C[C@@H]2O.CC(C)(NCC(O)COc1cccc2[nH]c3ccccc3c12)c1ccc(N=[N+]=[N-])cc1.CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)O
Fmoc-Leu PABC Paclitaxel
Rendimiento 93.0%

Reactantes

CC(=O)O[C@H]1C(=O)[C@@]2(C)[C@H]([C@H](OC(=O)c3ccccc3)[C@]3(O)C[C@H](OC(=O)[C@H](O)[C@@H](NC(=O)c4ccccc4)c4ccccc4)C(C)=C1C3(C)C)[C@]1(OC(C)=O)CO[C@@H]1C[C@@H]2O
Paclitaxel
CC(C)(NCC(O)COc1cccc2[nH]c3ccccc3c12)c1ccc(N=[N+]=[N-])cc1.CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)O
7
CC(C)(NCC(O)COc1cccc2[nH]c3ccccc3c12)c1ccc(N=[N+]=[N-])cc1.CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)O
Fmoc-Leu PABC

Reactivos

CN(C)c1ccncc1
4-Dimethylaminopyridine

Disolventes

ClCCl
DCM
ClCCl
DCM

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Extracciónthe reaction mixture was extracted with NaHCO3, brine
  2. 2
    Secadodried over sodium sulphate
  3. 3
    OtroThe residue was purified on a silica gel column

Procedimiento

Paclitaxel (0.37 g, 0.44 mmol) and 4-Dimethylaminopyridine (DMAP) (0.05 g, 0.44 mmol) were added to a solution of 7 (0.27 g, 0.44 mmol) in anhydrous DCM (15 mL), and the reaction was stirred in the dark at room temperature for 24 hours. Subsequently, DCM (20 mL) was added and the reaction mixture was extracted with NaHCO3, brine and dried over sodium sulphate. The residue was purified on a silica gel column using ethyl acetate/hexane (1:1) to afford 8 (550 mg, 93%) as a white powder. ESI-MS (5 kV, MeOH): m/z (%)=1360.1 (100) [M+Na]+; HPLC (230 nm): >95%.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08642555B2uspto-grants-2014_02