890709-66-7Relevant articles and documents
6,7-DIHYDRO-4H-PYRAZOLO[1,5-A]PYRAZINE COMPOUNDS FOR THE TREATMENT OF INFECTIOUS DISEASES
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Page/Page column 78-79, (2018/03/26)
The present invention relates to compounds of the formula (I) or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R4 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
A synthetic approach to diverse 3-acyltetramic acids via O- to C-acyl rearrangement and application to the total synthesis of penicillenol series
Sengoku, Tetsuya,Nagae, Yuta,Ujihara, Yasuaki,Takahashi, Masaki,Yoda, Hidemi
scheme or table, p. 4391 - 4401 (2012/06/18)
For the efficient approach to medicinally important α-branched 3-acyltetramic acids, the key reaction of O- to C- acyl rearrangement using α-amino-acid-derived 4-O-acyltetramic acids was extensively examined in the presence of various metal salts. Use of
Synthesis of the peptide moiety of the jamaicamides
Tanaka, Ayano,Usuki, Toyonobu
, p. 5036 - 5038 (2011/10/10)
The jamaicamides, isolated from cyanobacterium Lyngbya majuscula in Jamaica, are unique mixed polyketide-peptides that are reported to be blockers of the sodium channels. The peptide moiety contains a pyrrolinone ring and a β-methoxy enone functionality. Herein, we report the stereoselective synthesis of the N-(Boc)2-protected peptide moiety of the jamaicamides by utilizing Meldrum's acid starting from l-alanine and N-Boc-β-alanine.