87252-81-1Relevant articles and documents
Approach to Fully Substituted Cyclic Nitrones from N-Hydroxylactam Derivatives: Development and Application to the Total Synthesis of Cylindricine C
Hiraoka, Shobu,Matsumoto, Tsutomu,Matsuzaka, Koki,Sato, Takaaki,Chida, Noritaka
supporting information, p. 4381 - 4385 (2019/02/26)
An approach to cyclic nitrones from N-hydroxylactam derivatives is documented. The nucleophilic addition of an organolithium reagent to an N-OSEM [SEM=2-(trimethylsilyl)ethoxymethyl] lactam forms a five-membered chelated intermediate, which undergoes both elimination and deprotection to give a fully substituted nitrone in a one-pot process. When combined with the N-oxidation of easily available chiral lactams, this method becomes especially useful for the quick synthesis of chiral nitrones in enantio-pure form, enabling the concise total synthesis of cylindricine C.
FACTOR XA INHIBITORS
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Page 54, (2010/02/07)
Compounds of formula (I) in which R1, n, Z, R3 and R4 have any of the meanings given in the specification, are inhibitors of the serine protease Factor Xa and are useful in the treatment of thrombotic disorders.
Synthesis and some pharmacological properties of alkyl esters of various dl-ω-phenylamino acids
Schulz,Sprung,Kroning
, p. 310 - 313 (2007/10/02)
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