BAMBUTEROL

               3,5-dihydroxy benzoic acid

                                        3,5-dihydroxy acetophenone

                                        3,5-diphenoxy acetophenone

BENAZEPRIL

               4-hydroxyphenethylamine

                                        tert-butyl-(s)-(3-amino-2-oxo-2,3,4,5-tetrahydro benzo[b]azepin-1-yl)acetate

BRODIMOPRIM

               4-bromo-3,5-dihydroxybenzoic acid

                                        4-bromo-3,5-dimethoxybenzoic acid

                                        4-bromo-3,5-dimethoxy benzoyl chloride

                                        4-bromo-3,5-dimethylbenzaldehyde

BROMHEXINE

               2-amino-3,5-dibromotoluene   

                                        2-diacetylamino-3,5-dibromobenzyl bromide

                                        n-methyl-n-cyclohexyl-2-amino-3,5-dibromophenylmethylamine

BUFLOMEDIL

               1,3,5-trimethoxybenzene

                                       4-chlorobutyryl chloride

                                       1-(4-chlorobutyryl)-2,4,6-trimethoxybenzene

BUMETANIDE

               4-chloro-3,5-dinitrobenzoic acid 

                                       4-phenoxy-3,5-dinitrobenzoic acid  

                                       5-nitro-4-phenoxy-3-aminosulfonyl benzoic acid  

                                       5-amino-4-phenoxy-3-aminosulfonyl benzoic acid

BUTENAFINE

               4-(tert-butyl)benzyl chloride

                                       4-(tert-butyl)benzyl bromide

                              n-methyl-1-naphthalenemethylamine hcl