Naphthalene derivatives, processes for preparing the same, and synthetic intermediates therefor
申请人:TANABE SEIYAKU CO., LTD.
公开号:EP0557016B1
公开(公告)日:1996-06-19
US5342941A
申请人:——
公开号:US5342941A
公开(公告)日:1994-08-30
Naphthalene derivatives, processes for preparing the same, and synthetic
申请人:Tanabe Seiyaku Co., Ltd.
公开号:US05342941A1
公开(公告)日:1994-08-30
Naphthalene derivative of the formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are hydrogen atom, hydroxy group, cyclo-lower alkyloxy group, substituted or unsubstituted lower alkoxy group, or both combine each other to form lower alkylenedioxy group, R.sup.3 is substituted or unsubstituted nitrogen-containing 6-membered heterocyclic group, and groups of the formulae: --OR.sup.4 and --OR.sup.5 are the same or different and are protected or unprotected hydroxy group, processes for preparing thereof, and synthetic intermediates therefor, these compounds have excellent bronchodilating activity, and are useful in the prophylaxis and treatment of asthma.