5,5,5-三氟-2,4-二氧代戊酸乙酯

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound was prepared in analogy to the procedure described in Step 17.3 using 5-hydrazinyl-2,4-dimethoxypyrimidine (Step 46.8) and ethyl 5,5,5-trifluoro-2,4-dioxopentanoate at 100° C. for 2 hr. The crude product was purified by silica gel column chromatography (hexane/30% EtOAc). tR: 1.09 min (LC-MS 2); ESI-MS: 347 [M+H]+ (LC-MS 2); Rf=0.31 (hexane/30% EtOAc). The crude product was purified by silica gel column chromatography (hexane/30% EtOAc)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound was prepared in analogy to the procedure described in Step 17.3 using cyclopropylhydrazine (Step 17.2) and ethyl 5,5,5-trifluoro-2,4-dioxopentanoate at 100° C. for 2 hr. The crude product was purified by silica gel column chromatography (hexane/EtOAc 9:1). tR: 1.23 min (LC-MS 2); ESI-MS: 249.2 [M+H]+ (LC-MS 2); Rf=0.34 (hexane/EtOAc 9:1). The crude product was purified by silica gel column chromatography (hexane/EtOAc 9:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound was prepared in analogy to the procedure described in Step 17.3 using cyclopropylhydrazine (Step 17.2) and ethyl 5,5,5-trifluoro-2,4-dioxopentanoate at 100° C. for 2 hr. The crude product was purified by silica gel column chromatography (Hexane/EtOAc 9:1). tR: 1.10 min (LC-MS 2); ESI-MS: 249 [M+H]+ (LC-MS 2); Rf=0.17 (hexane/EtOAc 9:1). The crude product was purified by silica gel column chromatography (Hexane/EtOAc 9:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound was prepared in analogy to the procedure described in Step 17.3 using 5-hydrazinyl-2,4-dimethoxypyrimidine (Step 46.8) and ethyl 5,5,5-trifluoro-2,4-dioxopentanoate at 100° C. for 2 hr. The crude product was purified by silica gel column chromatography (hexane/30% EtOAc). tR: 1.09 min (LC-MS 2); ESI-MS: 347 [M+H]+ (LC-MS 2); Rf=0.31 (hexane/30% EtOAc). The crude product was purified by silica gel column chromatography (hexane/30% EtOAc)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound was prepared in analogy to the procedure described in Step 17.3 using cyclopropylhydrazine (Step 17.2) and ethyl 5,5,5-trifluoro-2,4-dioxopentanoate at 100° C. for 2 hr. The crude product was purified by silica gel column chromatography (hexane/EtOAc 9:1). tR: 1.23 min (LC-MS 2); ESI-MS: 249.2 [M+H]+ (LC-MS 2); Rf=0.34 (hexane/EtOAc 9:1). The crude product was purified by silica gel column chromatography (hexane/EtOAc 9:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The title compound was prepared in analogy to the procedure described in Step 17.3 using cyclopropylhydrazine (Step 17.2) and ethyl 5,5,5-trifluoro-2,4-dioxopentanoate at 100° C. for 2 hr. The crude product was purified by silica gel column chromatography (Hexane/EtOAc 9:1). tR: 1.10 min (LC-MS 2); ESI-MS: 249 [M+H]+ (LC-MS 2); Rf=0.17 (hexane/EtOAc 9:1). The crude product was purified by silica gel column chromatography (Hexane/EtOAc 9:1)