Boronic acid, 3-thienyl-, bis(1-methylethyl) ester → HCID 22478420, compound

Participants

Reaction Steps

Using an analogous procedure to that described in Example 5 except that the reaction mixture was heated to reflux for 2 hours, 6-bromo-4-(3-chloro-4-fluoroanilino)quinazoline hydrochloride salt was reacted with di-isopropyl 3-thienylboronate to give 4-(3-chloro-4-fluoroanilino)-6-(3-thienyl)quinazoline in 51% yield, m.p. 195-197° C.;

Provenance & Evidence