4-substituted 5-chloro-2-hydrazinothiazoles

4-substituted alkyl carbapenem antibiotics

4-substituted amido-8-disubstituted aminoimidazophenoxazines

4-Substituted amino-.alpha.-aminomethylbenzyl alcohol derivative

4-substituted and 7-substituted indoles, benzofurans,...

4-substituted anthracyclinones and anthracycline glycosides and

4-substituted anthracyclinones and their preparation

4-substituted azetidinones as precursors to 2-substituted-3-carb

4-substituted azetidinones as precursors to 2-substituted-3-carb

4-substituted azetidinones as precursors to 2-substituted-3-carb

4-substituted azetidinones as precursors to 2-substituted-3-carb

4-Substituted benzaldehyde-dialkylacetal

4-substituted bis (2,6-diisopropylphenyl)- carbodiimides, their

4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their pr

4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their pr

4-Substituted dehydroprolines

4-Substituted imidazo [1,2-a]quinoxalines

4-Substituted phenyl 4'-(5-N-alkyl-1,3-dioxan-2-yl) thiobenzoate

4-substituted phenyl crotyl ether derivative

4-Substituted phenyl-1,2,4-triazoline-3,5-diones and their dihyd