【摘 要】
:
Hinckdentine A (1) is a marine alkaloid consisting ofa seven-membered ring fused to a tribromo[1,2-c]quinazoline motif.Although the challenging structure of hinckdentine A has attracted much attention
【机 构】
:
Graduated School of Pharmaceutical Sciences,University of Tokyo,7-3-1 Hongo,Bunkyo-ku,Tokyo,113-0033
【出 处】
:
The 24th International Society of Heterocyclic Chemistry Con
论文部分内容阅读
Hinckdentine A (1) is a marine alkaloid consisting ofa seven-membered ring fused to a tribromo[1,2-c]quinazoline motif.Although the challenging structure of hinckdentine A has attracted much attention from the synthetic sommunitiy, only one total synthesis has been reported to date.[1] We have achieved the construction of the seven-membered ring by the double amination from the dimesylate, which was applied to the development of the novel synthetic route to 1.
其他文献
A highly efficient method for the oxo-hetero Diels-Alder reaction of 2-oxoindolin-3-ylidenes based on chiral calcium phosphate is described.In general, the adducts are obtained with high yields and ex
Acridine and its derivatives are planar tricyclic aromatic molecules which possess the ability to Intercalate tightly but reversibly to DNA helical structure.[1] Due to the ability, these compounds ar
An efficient and diastereoselective synthetic procedure for the functionalized 1,8,9,9a-tetrahydro4H-1,4-ethanoquinolizine derivatives was successfully developed via domino reactions of 4-dimethylamin
There exist different kinds of natural active components in crude oil, such as organic acids, ester, nitrogen containing heterocyclic compounds (NCHC) and so on.Most studies have been reported on syne
Münchnones are versatile 1,3-dipolar addition substrates and have proven key in the construction of a range of natural Products,[1] pharmacologically relevant heterocycles[2] and fullerene or carbon n
5-Esters of nucleosides with amino acids bear better oral bioavailability due to active transportation via the intestinal oligopeptide transporter 1 (PepT 1).[1,2] Here was reported a regionselective
A tandem reaction of ring opening of a polyepoxide is well documented in which promoter such as acid, base, radical were employed.However, very few transition metal catalyzed promotion has been report
1,2,3,4-Tetrahydropyrrolo[1,2-a]pyrazines serve as important scaffolds due to their potential antihypoxic, antiarrhythmic, psychotropic, andantihypersensitive activities.A highly efficient iridium-cat
2,3-Dihydrobenzofurans are unique structural skeletons in many biologically active molecules and natural products.An atom economical method for the synthesis of 2,3-dihydrobenzofurans via the o-QMs ge
Lepistine was isolated from Clitocybefasciclata by Laing and coworkers in 1975.The structure of lepistine was elucidated by an X-ray crystallographic analysis as a tricyclic compound, consisting of an