Abstract: The invention relates to a method of preparing a macrolide antibiotic of the formula wherein R1, R2, R3, R4, R5 are defined above. These antibiotics are useful as antibacterial and antiprotozoal agents in mammals, including man, as well as in fish and birds. The invention also includes novel compounds made by the preparation of the macrolide antibiotic.

Abstract: The instant invention relates to intermediates of Formula II, ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification, and to processes for preparing such intermediates. This invention also relates to processes for preparing compounds of Formula III, ##STR2## and enantiomers thereof, wherein R.sup.2, R.sup.3 and R.sup.4 are as defined in the specification. Compounds of Formula II and Formula III are intermediates in the preparation of a potent .beta..sub.3 adrenergic receptor agonist. The instant invention also relates to processes for preparing the .beta..sub.3 adrenergic receptor agonist using the compounds of Formula II and Formula III.

Abstract: The instant invention relates to intermediates of Formula II, ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification, and to processes for preparing such intermediates. This invention also relates to processes for preparing compounds of Formula III, ##STR2## and enantiomers thereof, wherein R.sup.2, R.sup.3 and R.sup.4 are as defined in the specification. Compounds of Formula II and Formula III are intermediates in the preparation of a potent .beta..sub.3 adrenergic receptor agonist. The instant invention also relates to processes for preparing the .beta..sub.3 adrenergic receptor agonist using the compounds of Formula II and Formula III.

Abstract: A method for preparing hydroxamic acid derivatives which are useful as analgesic, antiinflammatory, or neuroprotective agents.

Abstract: (C.sub.1 -C.sub.3)Alkyl-4,6,7,8,9,9a-hexahydro-2H,3H-pyrido[1,2-a]pyrazin-1-one-7-c arboxylate esters, important precursors to certain bis-aza-bicyclic anxiolytics, can be prepared from di(C.sub.1 -C.sub.3)alkyl cis-piperidine-2,5-dicarboxylate starting material by a new process via a new class of intermediates, di(C.sub.1 -C.sub.3)alkyl cis-N-(2-(phthalimido)ethyl)piperidine-2,5-dicarboxylates. In the process, the starting material is reacted with either 2-(phthalimido)ethyl triflate or 2-(phthalimido)acetaldehyde to form the new intermediate, which can then be cyclized to the aforementioned precursor.

Abstract: (C.sub.1 -C.sub.3)Alkyl-4,6,7,8,9,9a-hexahydro-2H,3H-pyrido-[1,2-a]pyrazin-1-one-7- carboxylate esters, important precursors to certain bis-aza-bicyclic anxiolytics, can be prepared from di(C.sub.1 -C.sub.3)alkyl cis-piperidine-2,5-dicarboxylate starting material by a new process via a new class of intermediates, di(C.sub.1 -C.sub.3)alkyl cis-N-(2-(phthalimido)ethyl)piperidine-2,5-dicarboxylates. In the process, the starting material is reacted with either 2-(phthalimido)ethyl triflate or 2-(phthalimido)acetaldehyde to form the new intermediate, which can then be cyclized to the aforementioned precursor.