[EN] PROCESS FOR PREPARING 5-(1, 3-OXAZOL-2-YL) BENZOIC ACID DERIVATIVES [FR] PROCEDE DE PREPARATION DE DERIVES DE L'ACIDE 5-(1, 3-OXAZOL-2-YL) BENZOIQUE
Palladium-Catalyzed Cross Coupling Reactions of Oxazol-2-ylzinc Chloride Derivatives
作者:Benjamin A. Anderson、Nancy K. Harn
DOI:10.1055/s-1996-4274
日期:1996.5
Oxazol-2-ylzinc chloride derivatives were prepared by transmetallation of the corresponding oxazol-2-yllithium species. The palladium-catalyzed cross coupling reactions of the resulting organometallic reagents were investigated with aryl halides and organotriflates.
Total Synthesis of Ajudazol A by a Modular Oxazole Diversification Strategy
作者:Philipp Wollnitzke、Sebastian Essig、Jan Philipp Gölz、Karin von Schwarzenberg、Dirk Menche
DOI:10.1021/acs.orglett.0c02188
日期:2020.8.21
The totalsynthesis of the potent respiratory chain inhibitor ajudazol A was accomplished by a concise strategy in 17 steps (longest linear sequence). The modularapproach was based on a direct oxazole functionalization strategy involving a halogen dance reaction for selective halogenation in combination with a challenging combination of sp2–sp2 and sp2–sp3 Negishi cross coupling reactions. The applicability
Substituent-Controlled Tailoring of Chalcogen-Bonded Supramolecular Nanoribbons in the Solid State
作者:Nicolas Biot、Deborah Romito、Davide Bonifazi
DOI:10.1021/acs.cgd.0c01318
日期:2021.1.6
In this work, we design and synthesize supramolecular 2,5-substituted chalcogenazolo[5,4-β]pyridine (CGP) synthons arranging in supramolecular ribbons at the solidstate. A careful choice of the combination of substituents at the 2- and 5-positions on the CGP scaffold is outlined to accomplish supramolecular materials by means of multiple hybrid interactions, comprising both chalcogen and hydrogen
Pyrazine Derivatives Useful as Adenosine Receptor Antagonists
申请人:Vidal Juan Bernat
公开号:US20090042891A1
公开(公告)日:2009-02-12
The present disclosure relates to a compound of formula (I)
wherein:
A is an optionally substituted monocyclic or polycyclic aryl or heteroaryl group; B is an optionally substituted monocyclic nitrogen-containing heteroaryl group; and either a) R
1
and R
2
are chosen from a hydrogen atom and specified substituents, or b) R
2
, R
1
and the —NH— group to which R
1
is attached, form a moiety chosen from the moiety of formulae (IIa) and (IIb):
or a pharmaceutically acceptable salt thereof, or a N-oxide thereof. The present disclosure also relates to a method for treating a subject afflicted with a pathological condition or disease susceptible to amelioration by antagonism of the A
2B
adenosine receptor.