The Synthesis of Pyrrolo[1,2-a]pyrazin-1(2H)-ones and Pyrrolo[1,2-b]pyridazin-6(5H)-ones
摘要:
The pyrrolo[1,2-a]pyrazin-1(2H)-ones (10), (11), (12) and (13) and the pyrrolo[1,2-b[pyridazin-6(5H)-one (18) were prepared either a) directly by Chichibabin quaternisation-cyclisation of the corresponding methoxy-methylpyrazine or pyridazine or b) by hydrogen halide hydrolysis of methoxypyrrolo[1,2-a]pyrazines and methoxypyrrolo[1,2-b]pyridazines. Protonation studies and some reactivity of the systems are discussed.
Potent Odorants of Raw Arabica Coffee. Their Changes during Roasting
摘要:
Aroma extract dilution analysis of raw Arabica coffee revealed 3-isobutyl-2-methoxypyrazine (I), 2-methexy-3,5-dimethylpyrazine (II), ethyl 2-methylbutyrate (III), ethyl 3-methylbutyrate (IV), and 3-isopropyl-2-methoxypyrazine (V) as potent odorants. The highest odor activity value was found for I followed by II, IV, and V. It was concluded that I was responsible for the characteristic, peasy odor note of raw coffee. Twelve odorants occurring in raw coffee and (E)-beta-damascenone were also quantified after roasting. The concentration of I did not change, whereas methional, 3-hydroxy-4,5-direethyl-2(5H)-furanone, vanillin, (E)-beta-damascenone, and 4-vinyl- and 4-ethylguaiacol increased strongly during the roasting process.
[EN] TRIAZOLE AGONISTS OF THE APJ RECEPTOR<br/>[FR] TRIAZOLES AGONISTES DU RÉCEPTEUR APJ
申请人:AMGEN INC
公开号:WO2016187308A1
公开(公告)日:2016-11-24
Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the following structures where the definitions of the variables are provided herein.
[EN] TRIAZOLE PYRIDYL COMPOUNDS AS AGONISTS OF THE APJ RECEPTOR<br/>[FR] COMPOSÉS DE TRIAZOLE PYRIDYLE EN TANT QU'AGONISTES DU RÉCEPTEUR APJ
申请人:AMGEN INC
公开号:WO2018093580A1
公开(公告)日:2018-05-24
Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and may have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the structures where the definitions of the variables are provided herein.
Disclosed is a compound represented by formula (1) or a pharmacologically acceptable salt thereof (In the formula, A represents a group that is represented by formula (A-1); R
1a
and R
1b
may be the same or different and each independently represents a C
1-6
alkyl group which may be substituted by one to three halogen atoms; m and n each independently represents an integer of 0-5; X
1
represents a hydroxyl group or an aminocarbonyl group; Z
1
represents a single bond or the like; and R
2
represents an optionally substituted C
1-6
alkyl group, an optionally substituted C
6-10
aryl group or the like.)
Tricyclic azaindolizine derivatives having an sPLA2-inhibitory activities
申请人:Shionogi & Co., Ltd.
公开号:US06756376B1
公开(公告)日:2004-06-29
The present invention provides a compound having sPLA2 inhibiting activity.
The compound represented by the formula (I):
wherein E is N or C—R4; G is N or C—R25; R1 is a carbocyclic group, heterocyclic group or the like; one of R3 and R4 is —(L2)-(acidic group), the other is a hydrogen atom, wherein L2 is a group connecting with an acid group; A ring is optionally substituted 5-8 membered cyclohexane ring or cyclohexene ring; R24 and R25 are a hydrogen atom or the like,
its prodrug, their pharmaceutically acceptable salt, or hydrate thereof.
Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the following structures:
where the definitions of the variables are provided herein.