1: 13-O-trimethylsilyl-7,10-bis-O-triethylsilyl-2-debenzoyl-4,10-bisdeacetyl baccatin (III) With lithium diisopropyl amide in tetrahydrofuran T=-78°C; 0.5 h; 2: acetyl chloride in tetrahydrofuran T=-78°C; 1 h; 3: With sodium hydrogencarbonate in tetrahydrofuran; water

1: 13-O-trimethylsilyl-7,10-bis-O-triethylsilyl-2-debenzoyl-4,10-bisdeacetyl baccatin (III) With lithium diisopropyl amide 2: acetyl chloride