[[2-Acetyl-7-(4-methoxy-benzyloxy)-benzofuran-4-sulfonyl]-(4-methoxy-benzyl)-amino]-acetic acid 4-methoxy-benzyl ester
[[2-Acetyl-7-(4-chloro-benzyloxy)-benzofuran-4-sulfonyl]-(4-chloro-benzyl)-amino]-acetic acid 4-chloro-benzyl ester
[[2-Acetyl-7-(4-methoxy-benzyloxy)-benzofuran-4-sulfonyl]-(4-methoxy-benzyl)-amino]-acetic acid
[(2-Acetyl-7-benzyloxy-benzofuran-4-sulfonyl)-benzyl-amino]-acetic acid benzyl ester
[2-Acetyl-7-(4-methoxy-benzyloxy)-benzofuran-4-sulfonylamino]-acetic acid 4-methoxy-benzyl ester