BN 50730 [ 6-(2-chlorophenyl)-9-((4-methoxyphenyl)thiocarbamoyl)-1-methyl-7,8,9,10-tetrahydro-4H-pyrido(4',3'-4,5)thieno(3,2-f)(1,2,4)triazolo(4,3-a)(1,4)diazepine,BN-50730,BN50730,LAU 8080,LAU-8080,LAU8080 ] platelet activating factor antagonist; structure given in first source