Trimethylaluminium mediated amide bond formation in a continuous flow microreactor as key to the synthesis of rimonabant and efaproxiral
作者:Tomas Gustafsson、Fritiof Pontén、Peter H. Seeberger
DOI:10.1039/b719603b
日期:——
A safe, functional-group-tolerant and high-throughput version of the trimethylaluminium mediated amide bond formation reaction has been developed in a microreactor system; rimonabant and efaproxiral were prepared to illustrate the utility of the method.
Malonicacid derivatives undergo unusually mild decarboxylation when treated with N,N′-carbonyldiimidazole (CDI) at room temperature to generate the carbonyl imidazole moiety in high yield, which can be reacted further with a variety of nucleophiles in an efficient one-pot process.
9-(1H-IMIDAZOL-5-YL)-1,11-DIHYDROISOCHROMENO[4',3':6,7]NAPHTHO[1,2-D]IMIDAZOLE DERIVATIVES AND THEIR USE AS INHIBITORS OF HCV NS5A
申请人:Gilead Pharmasset LLC
公开号:EP3239153A1
公开(公告)日:2017-11-01
The disclosure is related to anti-viral compounds of formula (I)
E1a-V1a-C(=O)-P1a-W1a-P1b-C(=O)-V1b-E1b (I)
wherein
W1a is
wherein Y5 is -CH 2-O- or -C(=O)-O-;
X5 is -CH=CH-; and
W1a is optionally substituted with halo or alkyl;
and to compositions containing such compounds for use in the prophylactic or therapeutic treatment of hepatitis C.
CONDENSED IMIDAZOLYLIMIDAZOLES AS ANTIVIRAL COMPOUNDS
申请人:Gilead Pharmasset LLC
公开号:EP3431477A1
公开(公告)日:2019-01-23
The disclosure is related to anti-viral compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.