(5-Cyano-2-Methoxyphenyl)Boronic Acid → {3-[5-(5-Chloro-1-methyl-6-oxo-1,6-dihydro-pyridin-3-yl)-6-(4-chloro-phenyl)-1-isopropyl-4-oxo-1,4,5,6-tetrahydro-pyrrolo[3,4-b]pyrrol-2-yl]-4-methoxy-phenyl}-acetic acid ethyl ester

Participants

Reaction Steps

The title compound was prepared in analogy to the procedure described for Example 17 but 2-bromo-5-(5-chloro-1-methyl-6-oxo-1,6-dihydro-pyridin-3-yl)-6-(4-chloro-phenyl)-1-isopropyl-5,6-dihydro-1H-pyrrolo[3,4-b]pyrrol-4-one (Intermediate E) and [4-methoxy-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-acetic acid ethyl ester (Intermediate AQ) were used instead of 2-bromo-5-(5-chloro-2-methyl-phenyl)-6-(4-chloro-phenyl)-1-isopropyl-5,6-dihydro-1H-pyrrolo[3,4-b]pyrrol-4-one and 5-cyano-2-methoxyphenylboronic acid respectively. The title compound (partially hydrolyzed to the acid) was obtained as a yellow foam. tR: 6.78 min (HPLC 2); ESI-MS: tR=1.12 min, [M+H]+ 594/596 (LC-MS 1).

Provenance & Evidence