Proline-catalyzed facile access to Mannich adducts using unsubstituted azoles
摘要:
A novel and facile method for the direct construction of C-C-N bond with unsubstituted azoles under Mannich conditions is developed for the first time. The reaction is catalyzed efficiently by.-proline to give the Mannich adducts 1a-10b in DMSO, whereas in water, insertion of two successive bonds, C-C-N and C-C-O occurred to give compounds 11a-20b. The latter are deformylated readily into the desired products 1a-10b Under basic conditions. Mechanistic aspects for the formation of these products are discussed. (c) 2008 Elsevier Ltd. All rights reserved.
Novel dihydronaphthalene compounds and processes of producing the same
申请人:——
公开号:US20020032211A1
公开(公告)日:2002-03-14
Dihydronaphthalene compounds have excellent 17&agr;-hydroxylase/C
17-20
-lyase inhibiting activity, thromboxan A
2
synthesis inhibiting activity, and aromatase inhibiting activity and are thereby are useful as preventive and/or therapeutic agents for various male sex hormone- and female sex hormone-dependent diseases such as prostate cancer, prostatomegaly, masculinization, breast cancer, mastopathy, uterine cancer, endometriosis, and ovarian cancer, as well as myocardial infarction, angina pectoris, and bronchial asthma.
NOVEL DIHYDRONAPHTHALENE COMPOUNDS AND PROCESS FOR PRODUCING THE SAME
申请人:Yukijirushi Nyugyo Kabushiki Kaisha
公开号:EP1028110A1
公开(公告)日:2000-08-16
Dihydronaphthalene compounds have excellent 17α-hydroxylase/C17-20-lyase inhibiting activity, thromboxan A2 synthesis inhibiting activity, and aromatase inhibiting activity and are thereby are useful as preventive and/or therapeutic agents for various male sex hormone- and female sex hormone-dependent diseases such as prostate cancer, prostatomegaly, masculinization, breast cancer, mastopathy, uterine cancer, endometriosis, and ovarian cancer, as well as myocardial infarction, angina pectoris, and bronchial asthma.
Proline-catalyzed facile access to Mannich adducts using unsubstituted azoles
作者:Nagarapu Srinivas、Kalpana Bhandari
DOI:10.1016/j.tetlet.2008.09.155
日期:2008.12
A novel and facile method for the direct construction of C-C-N bond with unsubstituted azoles under Mannich conditions is developed for the first time. The reaction is catalyzed efficiently by.-proline to give the Mannich adducts 1a-10b in DMSO, whereas in water, insertion of two successive bonds, C-C-N and C-C-O occurred to give compounds 11a-20b. The latter are deformylated readily into the desired products 1a-10b Under basic conditions. Mechanistic aspects for the formation of these products are discussed. (c) 2008 Elsevier Ltd. All rights reserved.