63720-40-1Relevant academic research and scientific papers
Catecholamine surrogates useful as β3 agonists
-
, (2008/06/13)
Compounds of the formula STR1 or pharmaceutically acceptable salts thereof wherein: A is a bond, --(CH 2) n -- or --CH(B)--, where n is an integer of 1 to 3 and B is --CN, --CON(R 9)R 9'' or --CO 2 R 7 ;R 1 is lower alkyl, aryl or arylalkyl;R 2 is hydrogen, hydroxy, alkoxy, --CH 2 OH, cyano, --C(O)OR 7, --CO 2 H, --CONH 2, tetrazole, --CH 2 NH 2 or halogen; STR2 R 3 is hydrogen, alkyl, heterocycle or R 4 is hydrogen, alkyl or B;R 5, R 5'', R 8, R 8'' or R 8"" are independently hydrogen, alkoxy, lower alkyl, halogen, --OH, --CN, --(CH 2) n NR 6 COR 7, --CON(R 6)R 6'', --CON(R 6)OR 6'', --CO 2 R 6, --SR 7, --SOR 7, --SO 2 R 7, --N(R 6)SO 2 R 1, --N(R 6)R 6'', --NR 6 COR 7, --OCH 2 CON(R 6)R 6'', --OCH 2 CO 2 R 7 or aryl; orR 5 and R 5'' or R 8 and R 8'' may together with the carbon atoms to which they are attached form an aryl or heterocycle;R 6 and R 6'' are independently hydrogen or lower alkyl; andR 7 is lower alkyl;R 9 is hydrogen, lower alkyl, alkyl, cycloalkyl, arylalkyl, aryl, heteroaryl; or R 9 and R 9'' may together with the nitrogen atom to which they are attached form a heterocycle; with the proviso that when A is a bond or --(CH 2) n and R 3 is hydrogen or unsubstituted alkyl, then R 4 is B or substituted alkyl. These compounds are beta 3 adrenergic receptor agonists and are useful, therefore for example, in the treatment of diabetes, obesity and gastrointestinal diseases.
Regiochemistry on Photoamination of Stilbene Derivatives with Ammonia via Electron Transfer
Yasuda, Masahide,Isami, Toshihiro,Kubo, Jun-ichi,Mizutani, Manabu,Yamashita, Toshiaki,et al.
, p. 1351 - 1354 (2007/10/02)
The regiochemistry of photoamination of 1,2-diarylethene (1) with ammonia in the presence of p-dicyanobenzene (DCNB) has been investigated.The photoamination of stilbene and p,p'-dimethoxystilbene gave 1-amino-1,2-diphenylethane and 1-amino-1,2-bis(p-methoxyphenyl)ethane, respectively.The photoamination of unsymmetric 1-aryl-2-phenylethene having an alkoxy group on the para position occurred selectively to give 1-amino-2-aryl-1-phenylethane.On the other hand, the photoamination of 1-aryl-2-phenylethene having a methyl and chloro group on the para position or methoxy group on the meta and ortho positions gave both 1-amino-2-aryl-1-phenylethane and 1-amino-1-aryl-2-phenylethane.The regiochemistry is related with the distribution of positive charge in the cation radicals of 1 generated from photochemical electron transfer to DCNB.
