摘要:
Compounds of Formula I ##STR1## the pharmaceutically acceptable salts, and the gamma-lactone form thereof are described. They are antagonists of leukotrienes and SRS-A.
摘要:
Compounds having the formula: ##STR1##are antagonists of leukotrienes of C.sub.4, D.sub.4 and E.sub.4, the slow reacting substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory agents and cytoprotective agents.
摘要:
Novel N-(substituted) derivatives of 2-aza-2'-hydroxy-5,6-benzotricyclo[6.3.0.sup.1,8.0.sup.4,11 ] undecane of the formula: ##STR1## are centrally acting analgesics effective in the relief of pain.
摘要:
The present invention relates to a process for the preparation of an enantiomer of 7 or 8-fluoro-dibenzo[b,f]thiepin-3-carboxylic acid having a negative rotation and prostaglandin antagonist activity. The process involves preparation and separation of novel diastereoisomeric esters of 10-hydroxy-7 or 8 fluro-dibenzothiepin-3 carboxylic acid ester followed by stereospecific sulfoxidation of the selected diastereoisomer to produce the corresponding novel sulfoxide having a preponderance of the desired configuration of the sulfoxide entity followed by treatment of the product with a strong base to produce directly the desired (-)7 or 8 fluoro-dibenzo[b,f]thiepin-3 carboxylic acid 5-oxide having the structural formula shown below: ##STR1##