5056-80-4Relevant academic research and scientific papers
N-BENZYLISOQUINOLINE ALKALOIDS FROM CERATOCAPNOS HETEROCARPA
Suau, Rafael,Silva, M. Victoria,Ruiz, Inmaculada,Valpuesta, Maria
, p. 241 - 244 (2007/10/02)
Three new N-benzylisoquinoline alkaloids, namely isosendaverine, capnosine and capnosinine, were isolated from Ceratocapnos heterocarpa in addition to the known sendaverine.Their structure was established by spectroscopic methods and verified by total synthesis.
A FACILE ROUTE TO TETRAHYDROISOQUINOLINE ALKALOIDS VIA SULFOXIDE MEDIATED CYCLIZATION
Takano, Seiichi,Iida, Hirokazu,Inomata, Kohei,Ogasawara, Kunio
, p. 47 - 52 (2007/10/02)
A facile route to 1,2,3,4-tetrahydroisoquinoline framework has been developed by employing the sulfoxide mediated cyclization reaction.Utilizing the reaction developed some naturally occurring isoquinoline alkaloids have been synthesized.
Inverse Electron Demand Diels-Alder Reactions of 3-Carbomethoxy-2-pyrones. Controlled Introduction of Oxygenated Aromatics: Benzene, Phenol, Catechol, Resorcinol, and Pyrogallol Annulation. Regiospecific Total Synthesis of Sendaverine and a Preparation of 6,7-Benzomorphans
Boger, Dale B.,Mullican, Michael D.
, p. 4033 - 4044 (2007/10/02)
A full investigation of the preparation and Diels-Alder reactions of 3-carbomethoxy-2-pyrones is described.Methods for the preparation of a full range of oxygen-substituted aromatics: benzene, 1-, 2-, or 3-phenol, symmetrical or unsymmetrical o-catechol, resorcinol, and pyrogallol annulation from a common 3-carbomethoxy-2-pyrone intermediate are detailed.A regiospecific total synthesis of sendaverine, a 2-benzyltetrahydroisoquinoline possessing a selectively protected, symmetrical o-catechol, and a preparation of 6,7-benzomorphans are described.
A NOVEL ROUTE TO THE SYNTHESIS OF SUBSTITUTED N-BENZYL-1,2,3,4-TETRAHYDROISOQUINOLINES. SYNTHESIS OF SENDAVERINE AND CORGOINE
Masood, M.,Tiwari, K. P.
, p. 177 - 182 (2007/10/02)
The condensation product of 2-aminoethanol with substituted benzaldehyde was reduced and N-benzylated with substituted benzyl chloride followed by PPA cyclization to obtain substituted N-benzyl-tetrahydroisoquinolines; likewise the condensation product of
A Novel Synthesis of the 2-Benzylisoquinoline Alkaloids, Sendaverine and Corgoine, with Aziridinium Salts as Reactive Intermediates
Otomasu, Hirotaka,Higashiyama, Kimio,Honda, Toshio,Kametani, Tetsuji
, p. 2399 - 2402 (2007/10/02)
A total synthesis of the 2-benzylisoquinoline alkaloids sendaverine (1) and corgoine (2) has been achieved by employing the ring-opening reaction of aziridinium salts as a key step.
AZIRIDINE IN ALKALOID SYNTHESIS : A NOVEL SYNTHESIS OF SENDAVERINE
Otomasu, Hirotaka,Higashiyama, Kimio,Honda, Toshio,Kametani, Tetsuji
, p. 353 - 355 (2007/10/02)
A facile synthesis of 2-benzylisoquinoline alkaloid, sendaverine, has been achieved by ring opening of aziridine derivative as a key reaction.
A New Total Synthesis of Sendaverine
Pandey, G. D.,Tiwari, K. P.
, p. 160 - 161 (2007/10/02)
Ethyl 4-benzyloxy-2-bromomethyl-5-methoxyphenylacetate (3) on condensation with 4-methoxybenzylamine (4) in DMF in the presence of triethylamine gives 7-benzyloxy-6-methoxy-2-(4'-methoxybenzyl)-1,4-dihydro-3(2H)-isoquinolone (5).LAH reduction of 5 in THF, followed by debenzylation with ethanolic HCl, furnishes sendaverine (6).
