intramolecular allylation reactions of furan and thiophene were performed using a cationic cyclopentadienyl-ruthenium (CpRu) complex of a chiral pyridine carboxylic acid, namely Cl-Naph-PyCOOH. Both furan and thiophene tethered with an allylic alcohol gave the corresponding bicyclic compounds in high yields and enantioselectivities using 0.1–5 mol% of the catalyst. The reaction was found to proceed via
Manganese(III) acetate initiated oxidative free radical reaction between 1,4-naphthoquinones and α-alkylmalonates
作者:Che-Ping Chuang、Sheow-Fong Wang
DOI:10.1016/s0040-4020(98)00622-x
日期:1998.8
The manganese(III) initiatedoxidativefreeradicalreactionbetween 1,4-naphthoquinones and α-alkylmalonates is described. Benzo[a]anthraquinones, benzo[f]indole-4,9-diones and naphtho[2,3-b] furan-4,9-diones can be prepared effectively from readily available 1,4-naphthoquinones and α-alkylmalonates.
Abstract The manganese (III) initiatedoxidativefreeradicalreaction of electron rich 3-heteroaryl substituted malonates is described.
摘要 描述了锰 (III) 引发的富电子 3-杂芳基取代丙二酸酯的氧化自由基反应。
Chuang Che-Ping, Wang Sheow-Fong, Synth. Commun, 24 (1994) N 11, S 1493-1505
作者:Chuang Che-Ping, Wang Sheow-Fong
DOI:——
日期:——
AMINOACID DERIVATIVES CONTAINING A DISULFANYL GROUP IN THE FORM OF MIXED DISULFANYL AND AMINOPEPTIDASE N INHIBITORS
申请人:Roques Bernard
公开号:US20090012153A1
公开(公告)日:2009-01-08
The invention relates to novel compounds of formula (I): H
2
N—CH(R
1
)—CH
2
—S—S—CH
2
—CH(R
2
)—CONH—R
5
, wherein R
1
is a hydrocarbon chain, phenyl or benzyl radical, methylene radical substituted by a 5 or 6 atom heterocycle; R
2
is a phenyl or benzyl radical, a 5 or 6 atom aromatic heterocycle, methylene group substituted by a 5 or 6 atom heterocycle; R
5
is a CH(R
3
)—COOR
4
radical, wherein R
3
is hydrogen, an OH or OR group, a saturated hydrocarbon group, a phenyl or benzyl radical and OR
4
is hydrophile ester, or 5 or 6 membered heterocycle comprising several heteroatoms selected from a group consisting of nitrogen, sulphur and oxygen, with at least two nitrogene atoms, wherein said heterocycle is substitutable by an alkyl C
1
-C
6
, phenyl or benzyl radical. The use of the inventive compounds in the form of drugs, a pharmaceutical composition comprising said compounds, a pharmaceutically acceptable excipient, the use in conjunction of at least one type of cannabinoid derivative for potentiating the analgesic and antidepressant effect of the novel compounds of formula (I) and/or morphine or the derivatives thereof are also disclosed.