292077-58-8Relevant articles and documents
New Pyridone Approach: Total Synthesis of Mappicine Ketone (Nothapodytine B)
Mekouar, Khalid,Genisson, Yves,Leue, Stefanie,Greene, Andrew E.
, p. 5212 - 5215 (2000)
A novel synthesis of mappicine ketone, which possesses strong selective activity against the herpes viruses HSV-1 and HSV-2, including those Acyclovir-resistant, and human cytomegalovirus (HCMV) has been efficiently accomplished. The synthesis highlights a new pyridone approach that effectively combines a double, intramolecular Michael addition in a conjugated ester-conjugated amide with oxidation-decarboxylation of the resulting piperidone.
Total synthesis of mappicine ketone (nothapodytine B) by means of sulfur-directed 5-exo-selective aryl radical cyclization onto enamides
Kato, Issei,Higashimoto, Masayuki,Tamura, Osamu,Ishibashi, Hiroyuki
, p. 7983 - 7989 (2007/10/03)
Enamides 5, on treatment with Bu3SnH-AIBN, underwent aryl radical cyclization in a 5-exo manner to give 1-[bis(phenylthio)methyl]dihydroisoindoles 6, which were partially desulfurized with Bu3SnH-AIBN to give 1-mono(phenylthio)methyl
Preparation of camptothecin and of its derivatives
-
, (2008/06/13)
The present invention relates to a novel process for preparation of camptothecin and of its derivatives by convergent synthesis starting from a 3-(aminomethyl)quinoline derivative and 5-hydroxy-5-ethyl-6-oxo-5,6-dihydropyrancarboxylic acid and to the intermediates obtained.