ethyl 3-(2-amino-5-chlorophenoxy)prop-2-enoate

3,6-dimethyl-1,4-benzoxazin-2-one

ethyl 3-(2-amino-4-methylphenoxy)prop-2-enoate

3,7-dimethyl-1,4-benzoxazin-2-one

ethyl 3-(2-amino-5-methylphenoxy)prop-2-enoate