Results 61 to 70 of about 755 (153)

Cathagines A–D, new bisindole alkaloids from Catharanthus roseus

Journal of Natural Medicines
Four new bisindole alkaloids, cathagines A (1)-D (4) consisting of an aspidosperma and the fused tetracyclic 3-spirooxindole derived from an iboga type skeleton were isolated from the whole plant of Catharanthus roseus. The structures including absolute stereochemistry were elucidated on the basis of 2D NMR data and CD spectra.
Yusuke, Hirasawa, Chiaki, Kasagi, Erika, Koyama, Hitomi, Myojin, Takahiro, Tougan, Toshihiro, Horii, Nahoko, Uchiyama, Toshio, Kaneda, Hiroshi, Morita   +8 more
openaire   +2 more sources

Indirubin, a bisindole alkaloid from Isatis indigotica, reduces H1N1 susceptibility in stressed mice by regulating MAVS signaling. [PDF]

Oncotarget, 2017
Jie C, Luo Z, Chen H, Wang M, Yan C, Mao ZF, Xiao GK, Kurihara H, Li YF, He RR.   +9 more
europepmc   +1 more source

Bisleuconothine A, a bisindole alkaloid, inhibits colorectal cancer cell in vitro and in vivo targeting Wnt signaling. [PDF]

Oncotarget, 2016
Kong LM, Feng T, Wang YY, Li XY, Ye ZN, An T, Qing C, Luo XD, Li Y.   +8 more
europepmc   +1 more source

NaHMDS/B(C₆F₅)₃-promoted diastereoselective Friedel-Crafts alkylation of indoles/pyrroles with <i>N-tert</i>-butanesulfinylimines: towards the asymmetric synthesis of bisindole alkaloid Calcicamide B. [PDF]

RSC Adv
Zhang G, Chen X, Liu Y, Peng R, Xu M, Yan S, Xiao J, Liu Z, Min Q, Liao G, Wang X, Qin S.   +11 more
europepmc   +1 more source

Total Synthesis of (-)-Owerreine and (-)-Anhydrovobtusine. [PDF]

Org Lett
Myeong IS, Pinto T, Movassaghi M.
europepmc   +1 more source

Stereochemical Analysis of Natural Products: Bisindole Alkaloids of the <i>Strychnos-Strychnos</i> Type. [PDF]

Int J Mol Sci
Grigoriev DA, Semenov VA, Angenot L, Krivdin LB.   +3 more
europepmc   +1 more source

Usambarensine from Strychnos usambarensis: Revisiting a Bis-Indole Alkaloid for Antiviral Repositioning

ACS Omega
Kristi Leka, Lucia Mamede, Cindy Lesenfants, Sofia Robbiano, Elyn Vandeberg, Carla Hamann, Michel Frédérich, Mutien-Marie Garigliany, Allison Ledoux   +8 more
doaj   +1 more source

Total Synthesis of Strempeliopidine and Non-Natural Stereoisomers through a Convergent Petasis Borono-Mannich Reaction. [PDF]

J Am Chem Soc, 2023
Rand AW, Gonzalez KJ, Reimann CE, Virgil SC, Stoltz BM.   +4 more
europepmc   +1 more source

Arylation of Olefins with N-Unprotected Bromobisindole Ethanamines: Expanding the Scope of the Mizoroki-Heck Reaction. [PDF]

J Org Chem
Buono A, Mariani L, Chiappini M, Duranti A, Olivieri D, Lucarini S.   +5 more
europepmc   +1 more source

Studies on the synthesis of bisindole Aspidosperma alkaloids

I. Introduction and Background on Aspidosperma Alkaloids A brief overview of monoterpene indole Aspidosperma alkaloids is discussed. The biosynthesis of the characteristic pentacyclic core from tryptamine and secologanin is summarized. Some representative examples of total syntheses of Aspidosperma alkaloids are discussed.
openaire   +1 more source