Phthalic Anhydride → HCID 118271799, compound

Participants

Reaction Conditions

Reaction Steps

(R)-1-(3-Amino-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea (Example 47, Step 1; 503 mg, 0.934 mmol) and isobenzofuran-1,3-dione (159 mg, 1.074 mmol) were added to a 1.5 mL microwave vial, charged with dioxane (4 mL), and heated to 110° C. for 4.5 h. The solvents were concentrated in vacuo and the residue was purified by flash chromatography (2-10% EtOAc/DCM) to give (R)-1-(3-(1,3-dioxoisoindolin-2-yl)-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea. MS ESI calc'd. for C42H32N6O3 [M+1]+ 669. found 669.

Provenance & Evidence