935544-52-8

Upstream product

• 935544-47-1 tert-butyl 3-oxotetrahydro-1H-oxazolo[3,4-a]pyrazine-7(3H)-carboxylate 
• 372-20-3 3-fluorophenol 
• 143540-05-0 2-hydroxymethylpiperazine-1,4-dicarboxylic acid di-tert-butyl ester 
• 181955-79-3 N,N'-di-tert-butyloxycarbonylpiperazine-2-carboxylic acid 
• 24424-99-5 di-tert-butyl dicarbonate 

Relevant academic research and scientific papers

NOVEL PIPERAZINES, PHARMACEUTICAL COMPOSITIONS AND METHODS OF USE THEREOF

Disclosed are novel piperazine derivatives that act as agonists of the α7 nAChR. Also disclosed are phannaceutical compositions, methods of treating inflammatory conditions, methods of treating CNS disorders, methods for inhibiting cytokine release from mammalian cells and methods for the preparation of the novel compounds.

An orthogonal protection strategy for the synthesis of 2-substituted piperazines

Tetrahydro-1H-oxazolo[3,4-a]pyrazin-3(5H)-ones are readily prepared from the bis-carbamate protected piperazine-2-carboxylic acids and serve as orthogonally protected piperazines from which a variety of 2-substituted piperazines can be prepared. Sodium benzylate and sodium phenoxides react at the C-5 carbon of the oxazolidinone to yield 2-(benzyloxymethyl)piperazines and 2-(phenoxymethyl)piperazines, respectively. The tetrahydro-1H-oxazolo[3,4-a]pyrazin-3(5H)-ones also provide convenient scaffolds from which 2-benzyl- and 2-phenethylpiperazines are prepared.