Reaktion #966790

Reaktionsgleichung

(S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-chloropyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetate

(R)-1-boc-2-methylpiperazine

triethylamine

→

(R)-tert-butyl 4-(4-(6-((S)-1-tert-butoxy-2-methoxy-2-oxoethyl)-7-(4-chlorophenyl)-5-methylbenzo[d]thiazol-2-yl)pyrimidin-2-yl)-2-methylpiperazine-1-carboxylate

Lösungsmittel

1,4-dioxane

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.WAITat 40° C. for an additional 7 h
2. 2
   FiltrationThe reaction mixture was filtered through Celite (ethyl acetate eluent)
3. 3
   Einengenconcentrated
4. 4
   Sonstigeused without further purification

Vorschrift

To (S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-chloropyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetate (80.0 mg, 0.155 mmol) and (R)-1-boc-2-methylpiperazine (93.1 mg, 0.465 mmol) in 1,4-dioxane (2 mL) was added triethylamine (156.8 mg, 0.19 mL, 1.549 mmol). The reaction mixture was stirred at 40° C. for 4 h, at room temperature overnight, then at 40° C. for an additional 7 h. The reaction mixture was filtered through Celite (ethyl acetate eluent), concentrated, and used without further purification. LCMS-ESI+ calc'd for C35H43ClN5O5S (M+H+): 680.3; Found: 680.0 (M+H+).

Quelle