Sulfonterol is a benzenemethanol derivative. Sulfonterol is a Bronchodilator[1].
References
[1] Undem BJ, et al. Studies on beta-adrenoceptors of purified mast cells from guinea-pig lung. Eur J Pharmacol. 1985 Mar 12;109(3):413-6. DOI:10.1016/0014-2999(85)90405-4