The present invention provides a lipid-rich plaque regressing agent comprising a compound represented by Formula:
1
in which ring A is a cyclic hydrocarbon or the like; ring B is a heterocyclic ring or the like; each of X and Y is —NR
1
— (in which R
1
is a hydrocarbon or the like); D is a C
1-3
alkylene group or the like; E is —NH— or the like; G is a bond or the like; and Ar is an aryl or the like; D may be taken together with a constituent atom of the ring B to form a ring, and R
4
may be taken together with a constituent atom of the ring B to form a ring.
The present invention provides a lipid-rich plaque regressing agent comprising a compound represented by Formula:
in which ring A is a cyclic hydrocarbon or the like; ring B is a heterocyclic ring or the like; each of X and Y is —NR
1
— (in which R
1
is a hydrocarbon or the like); D is a C
1-3
alkylene group or the like; E is —NH— or the like; G is a bond or the like; and Ar is an aryl or the like; D may be taken together with a constituent atom of the ring B to form a ring, and R
4
may be taken together with a constituent atom of the ring B to form a ring.
The present invention provides a lipid-rich plaque regressing agent comprising a compound represented by Formula:
in which ring A is a cyclic hydrocarbon or the like; ring B is a heterocyclic ring or the like; each of X and Y is -NR1- (in which R1 is a hydrocarbon or the like); D is a C1-3 alkylene group or the like; E is -NH- or the like; G is a bond or the like; and Ar is an aryl or the like; D may be taken together with a constituent atom of the ring B to form a ring, and R4 may be taken together with a constituent atom of the ring B to form a ring.
本发明提供了一种富含脂质的斑块消退剂,它包含由式表示的化合物:
其中环 A 是环状烃或类似物;环 B 是杂环或类似物;X 和 Y 各为-NR1-(其中 R1 是烃或类似物);D 是 C1-3 烯基或类似物;E 是-NH- 或类似物;G 是键或类似物;Ar 是芳基或类似物;D 可与环 B 的一个组成原子共同形成一个环,R4 可与环 B 的一个组成原子共同形成一个环。
Cyclization Reactions of Rhodium Carbene Complexes. Effect of Composition and Oxidation State of the Metal
作者:Albert Padwa、Jamal M. Kassir、Simon L. Xu
DOI:10.1021/jo962271r
日期:1997.3.1
Treatment of o-(1,7-octadiynyl)benzoyldiazoethane with rhodium(II) octanoate in pentane resulted in a double internal/internal alkyne insertion reaction producing a labile bicyclo[4.1.0]hept-1(7)ene derivative which readily undergoes a Diels-Alder reaction with diphenylisobenzofuran. Changing the solvent from pentane to CH2Cl2 afforded a 2:1 mixture of cis- and trans-alkenyl-substituted indenones. Stepwise cyclization involving a set of dipolar intermediates occurs in CH2Cl2 whereas metallocyclobutenes are involved when pentane is used as the solvent. The rhodium(II) carboxylate catalyzed reaction of unsymmetrically substituted cyclopropenes gives substituted furans derived from cleavage of the less substituted beta-bond. Thus, treatment of 3-benzoyl-3-methyl-1-(n-butyl)cyclopropene with Rh2OAc4 afforded a 26:1 mixture of 2-phenyl-3-methyl-4-(n-butyl)- and 2-phenyl-3-methyl-5-(n-butyl)furan. In contrast, the [ClRh(CO)(2)](2)-catalyzed reaction resulted in cleavage of the more substituted sigma-bond producing only 2-phenyl-3-methyl-5-(n-butyl)furan. Both reactions involve electrophilic attack of the rhodium metal on the less substituted carbon atom of the cyclopropene pi-bond to give the most stabilized cyclopropyl carbocation. Ring opening followed by rapid electrocyclization to the furan occurs with the Rh(IH) catalyst. With the Rh(I) catalyst, the ring-opened species preferentially cyclizes to a metallocyclobutene intermediate which then equilibrates with the thermodynamically more stable isomer prior to furan formation. The Rh(I)-catalyzed reaction of 3-benzoyl-1-propylcyclopropene with various terminal alkynes gives 4-alkyl-4-propyl-7-phenyloxepins in good yield. These reactions involve electrophilic attack of the rhodium metal on the more substituted carbon of the cyclopropene; pi-bond to give a rhodium carbene complex, This metallo carbenoid undergoes a subsequent [2 + 2] cycloaddition with terminal acetylenes, The resulting rhodacycle rearranges by a formal 1,5-sigmatropic shift, and this is followed by reductive elimination of rhodium to produce the observed oxepin.