✍ Scribed by G. A. Karlivan; V. R. Zin'kovskaya; R. é. Valter; R. B. Kampare
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
A new reaction of 2,5\_disubstituted furans with bromine in an acetone -water solution afforded an efficient and mild method for opening of the furan ring, this leading to the respective enedione system. The reaction was successfully carried out under either basic or acidic conditions.
Studies on an unexpected reaction involving a reductive cleavage of the pyridazine moiety of a tricyclic heterocycle are described. Structure assignments for the products obtained from the reductive cleavage were made using physicochemical methods. The pro drug' (TCN-P, fi) of 6-amino-4-N-methyl-8-(
## Abstract Fusion of an azole moiety at C‐6 and C‐7 of naltrexone (1) is illustrated by the synthesis of the title compound 8. Bromination of 3‐__O__‐methylnaltrexone led to the 1,7α‐dibromo derivative which reacted with thiourea to attach the 2‐aminothiazole ring to C‐6 and C‐7 of naltrexone. Aft
So far one has only succeded in synthetising 5.7~dihydroxy-6-methoxyflavonea bearing not more than one substituent on the phenyl side Aain /B-ring/ l-9. b tried to solve this problem by alkaline ring isomerization 10-12.