147779-25-7Relevant articles and documents
Preparation of new axially chiral bridged 2,2′-bipyridines and pyridyl monooxazolines (pymox). Evaluation in copper(i)-catalyzed enantioselective cyclopropanation
Bouet, Alexis,Heller, Barbara,Papamicael, Cyril,Dupas, Georges,Oudeyer, Sylvain,Marsais, Francis,Levacher, Vincent
, p. 1397 - 1404 (2007/12/27)
This work reports the synthesis of new axially chiral bridged 2,2′-bipyridines 1 and pyridylmonooxazolines (pymox) 2. The potential of these new axially chiral N,N-ligands was evaluated in asymmetric catalytic cyclopropanation of styrene derivatives 22a-c with diazoesters 21a,b. While 2,2′-bipyridines 1a-c afforded the corresponding cyclopropanes 23a-f in up to 65% ee, pymoxs 2a-e gave somewhat lower enantioselectivities (up to 53% ee). Both classes of ligands produced trans-cyclopropanes 23a-f as the major isomer, although with modest diasteroselectivities (56: 44 to 78: 22). A structure-stereoselectivity relationship study of ligands 1 and 2 identified the chiral biaryl axis as being mostly responsible for the enantioselective performances of these ligands. The Royal Society of Chemistry.
Benzopyridazinone and pyridopyridazinone compounds
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, (2008/06/13)
Benzo or pyridopyridazinones and pyridazinthiones of the formula STR1 wherein: X and Y are nitrogen or carbon, provided that at least one is carbon, and Z is oxygen or sulfur; R1 is hydrogen, lower alkyl, aryl, aralkyl, heterocyclo, heterocyclo lower-alkyl, heteroaryl, or heteroaralkyl; R2, R3, R4, R5 and R6 are independently selected from hydrogen, lower alkyl, halo, carboxy, alkoxycarbonyl, carbamoyl, lower-alkyl carbonyl, halocarbonyl, thiomethyl, trifluoromethyl, cyano or nitro; or a pharmaceutically acceptable ester, ether or salt thereof, have been found to be useful as an anti-inflammatory, antasthmatic, immunosuppressive, anti-allograft rejection, anti-graft-vs-host rejection, autoimmune disease or analgetic agent(s).
Tricyclic thiazole and oxazole derivatives and pharmaceutical agents containing them
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, (2008/06/13)
The present invention concerns thiazolo- 2,3-a!pyrrole and oxazolo- 1,2-a!pyrrole derivatives of formula I STR1 in which HET represents a heterocyclic ring with 3-7 ring atoms which can be substituted by one, two or three residues R1 which can be the same or different, Y represents an oxygen or sulphur atom, or a SO or SO2 group, X can be an oxygen or sulphur atom, R denotes an aliphatic residue with 1-9 C-atoms which can be substituted by phenyl or denotes a phenyl ring or a carbocyclic ring with 7-15 C atoms or a heterocyclic ring system each having 5 or 6 ring atoms, in which the aforementioned phenyl rings, carbocyclic rings or heterocyclic ring system can be substituted once or several times, if desired, and R1-R5 denote hydrogen or an aliphatic residue, as well as their tautomers, enantiomers, diastereomers and physiologically tolerated salts.
Heterocyclic compounds, their production and use as tachykinin reactor antagonists
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, (2008/06/13)
A novel compound represented by the formula: STR1 wherein Ring A and Ring B respectively stands for an optionally substituted homo- or hetero-cyclic ring, and at least one of them stands for an optionally substituted heterocyclic ring stand; Ring C stands for an optionally substituted benzene ring; R stands for a hydrogen atom or an optionally substituted hydrocarbon residue; one of X and Y stands for --NR1 -- (R1 stands for a hydrogen atom or an optionally substituted hydrocarbon residue) or --O--, and the other stands for--CO-- or --CS--, or one of them stands for --N= and the other stands for =CR2 -- (R2 stands for a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon residue, an optionally substituted amino group or an optionally substituted hydroxyl group); n denotes 1 or 2 or salts thereof which have an excellent tachykinin receptor antagonistic action and inhibitory action on plasma extravasation.
Herbicidal pyridopyridazinones and pyridopyridazinethiones
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, (2008/06/13)
Pyrido[2,3-d]pyridazin-5-one and pyrido[2,3-d]pyridazin-5-thione derivatives of general formula (I): STR1 wherein R and R1 independently represent hydrogen, optionally halogenated alkyl, alkenyl or alkynyl, optionally substituted heterocycle or a group --[CR41 R42 ]n -(phenyl)-(R3)q ; R2 represents halogen, optionally halogenated alkyl, alkenyl or alkynyl, CN; --CO2 R4 ; --S(O)r R4 ; --NO2 ; --NR41 R42 ; --OH; --COR4, --S(O)r R5, --CO2 R5, --OR5 ; --CONR41 R42, --OSO2 R5, --OSO2 R6, --OCH2 R5, --N(R41)COR6, --N(R41)SO2 R5, --N(R41)SO2 R6, --SO2 NR41 R42, optionally substituted phenyl, alkoxy or haloalkoxy; X represents oxygen or sulphur; R3 represents halogen, optionally halogenated alkyl, alkenyl, alkoxy, alkynyl, --OH, --S(O)r R4, --CO2 R4, COR4, --CN, --NO2, --NR41 R42, --OR5 ; --CONR41 R42, --OSO2 R5, --OSO2 R6, --OCH2 R5, --N(R41)COR6, --N(R41)SO2 R5, --N(R41)SO2 R6 or --SO2 NR41 R42 ; R4 represents a hydrogen atom or optionally halogenated C1-6 alkyl; R41 and R42, which may be the same or different, each represents a hydrogen atom or optionally halogenated C1-4 alkyl; R5 represents a phenyl group optionally substituted by from one to five groups selected from halogen, nitro, cyano, R4 and --OR4 ; m represents zero or an integer from one to three; n represents zero, one or two; where n is two, the groups --(CR41 R42)-- may be the same or different; q represents zero or an integer from one to five; r represents zero, one or two; with the proviso that when m represents zero R and R1 do not simultaneously represent hydrogen; and agriculturally acceptable salts thereof are useful as herbicides.
Selective Non-Nucleoside HIV-1 Reverse Transcriptase Inhibitors. New 2,3-Dihydrothiazoloisoindol-5(9bH)-ones and Related Compounds with Anti-HIV-1 Activity
Mertens, Alfred,Zilch, Harald,Koenig, Bernhard,Schaefer, Wolfgang,Poll, Thomas,et al.
, p. 2526 - 2535 (2007/10/02)
A series of substituted 2,3-dihydrothiazoloisoindol-5(9bH)-ones and related compounds 1-73 were synthesized and evaluated for their ability to inhibit reverse transcriptase (RT) of the human immune deficiency virus 1 (HIV-1) and replication of HIV-