scholarly journals Fungal Origins of the Bicyclo[2.2.2]diazaoctane Ring System of Prenylated Indole Alkaloids

2012 ◽  
Vol 75 (4) ◽  
pp. 812-833 ◽  
Author(s):  
Jennifer M. Finefield ◽  
Jens C. Frisvad ◽  
David H. Sherman ◽  
Robert M. Williams
Keyword(s):  
1996 ◽  
Vol 37 (20) ◽  
pp. 3603-3606 ◽  
Author(s):  
Toh-Seok Kam ◽  
K. Yoganathan ◽  
Chen Wei
Keyword(s):  

Tetrahedron ◽  
1985 ◽  
Vol 41 (9) ◽  
pp. 1753-1762 ◽  
Author(s):  
Joan Bosch ◽  
Josep Bonjoch ◽  
Anna Diez ◽  
Anna Linares ◽  
Montserrat Moral ◽  
...  

2018 ◽  
Vol 35 (6) ◽  
pp. 532-558 ◽  
Author(s):  
Kimberly R. Klas ◽  
Hikaru Kato ◽  
Jens C. Frisvad ◽  
Fengan Yu ◽  
Sean A. Newmister ◽  
...  

Various fungi of the generaAspergillus,Penicillium, andMalbrancheaproduce prenylated indole alkaloids possessing a bicyclo[2.2.2]diazaoctane ring system.


Author(s):  
Bao Bao SHi ◽  
Jing S Lu ◽  
Jing Wu ◽  
Mei F Bao ◽  
Xiang H Cai

The first symmetric indole alkaloid trimer bousangustine A as well as dimeric ones, bousangustines B−C was isolated from trunks of Bousigonia angustifolia. The structures featuring a symmetric 6/9/5/6 ring system...


2020 ◽  
Vol 71 (6) ◽  
pp. 82-88
Author(s):  
Nesimi Uludag

A new and well planned approach has been accomplished for the total synthesis of 20-Deethyltubifolidine, which is effective for biological properties and fascinating molecules. This product embodies the ABCDE-ring system associated with the indole alkaloids. The synthesis was accomplished in six steps and produced a 38% yield.


1984 ◽  
Vol 75 ◽  
pp. 461-469 ◽  
Author(s):  
Robert W. Hart

ABSTRACTThis paper models maximum entropy configurations of idealized gravitational ring systems. Such configurations are of interest because systems generally evolve toward an ultimate state of maximum randomness. For simplicity, attention is confined to ultimate states for which interparticle interactions are no longer of first order importance. The planets, in their orbits about the sun, are one example of such a ring system. The extent to which the present approximation yields insight into ring systems such as Saturn's is explored briefly.


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