115441-65-1Relevant articles and documents
Isolation, structural elucidation, and synthesis of RA-XVII, a novel bicyclic hexapeptide from Rubia cordifolia, and the effect of side chain at residue 1 upon the conformation and cytotoxic activity
Hitotsuyanagi, Yukio,Ishikawa, Hiroshi,Hasuda, Tomoyo,Takeya, Koichi
, p. 935 - 938 (2004)
A novel antitumor bicyclic hexapeptide RA-XVII was isolated from the roots of Rubia cordifolia. By spectral studies and synthetic approach, its structure was determined to be [D-2-aminobutyric acid-1]deoxybouvardin. Studies on the effect of side chain at
Regioselective synthesis of 14-membered biaryl ethers: Total synthesis of RA-VII and deoxybouvardin
Inoue,Inaba,Umezawa,Yuasa,Itokawa,Ogura,Komatsu,Hara,Hoshino
, p. 1325 - 1335 (2007/10/02)
In order to obtain a key compound (22a'') for synthesis of RA-VII (1) and deoxybouvardin (2), construction of the 14-membered ring system was performed by means of thallium trinitrate-mediated oxidation of the tetrahalogeno amides 5-7. The dibromo dichlor