107462-41-9Relevant academic research and scientific papers
SYNTHETIC APPROACH TO THE TOTAL SYNTHESIS OF FUMITREMORGINS II SYNTHESIS OF OPTICALLY ACTIVE PENTACYCLIC INTERMEDIATES AND THEIR DEHYDROGENATION
Nakagawa, Masako,Fukushima, Hiroshi,Kawate, Tomohiko,Hongu, Mitsuya,Kodato, Shin-ichi,et al.
, p. 3235 - 3238 (1986)
Optically active pentacycles ( l3-18 ) were synthesized from L- and D-tryptophans, two of which ( l3 and 15 ) were alkylated and dehydrogenated to 21 and 22, respectively.
Synthetic Approaches to Fumitremorgins. III. Synthesis of Optically Active Pentacyclic Ring Systems, and Their Oxidation at Ring C
Nakagawa, Masako,Fukushima, Hiroshi,Kawate, Tomohiko,Hongu, Mitsuya,Une, Teruaki,et al.
, p. 23 - 32 (2007/10/02)
Pictet-Spengler reaction of L-tryptophan methyl ester (9) and 6-methoxy-L-tryptophan methyl ester (40) with isovaleraldehyde (10) in methylene chloride in the presence of trifluoroacetic acid gave the cis-tetrahydro-β-carboline (11, 41) as the major isome
