PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8496938-3 1993 A series of platelet activating factor (PAF) antagonists containing a quaternary pyridinium ring connected through an amide, imide, or carbamate linkage to a substituted aromatic ring was prepared. Carbamates 135-144 patchy fur Mus musculus 40-43