5-O-ethyl 7-O-methyl 6-(2-chlorophenyl)-8-methyl-3,4,6,7-tetrahydro-2H-1,4-benzoxazine-5,7-dicarboxylate

This compound is a substituted benzoxazine dicarboxylate used as a pharmaceutical intermediate in the synthesis of amlodipine analogues. It features a complex polycyclic structure with ester, amine, and ether functional groups, making it a key building block for calcium channel blocker derivatives.