A novel synthesis of imatinib and its intermediates
摘要:
A convenient method has been developed for the synthesis of imatinib and two of its intermediates. N-(2-Methyl-5-nitrophenyl)-4-(3-pyridyl)-2-pyrimidinamine, obtained from 2-(methylsulfonyl)-4-(3-pyridyl)pyrimidine via nucleophilic substitution, was reduced by N2H4 center dot H2O/FeCl3 center dot 6H(2)O/C in 92% yield. The resulting amine was condensed with 4-[(4-methylpiperazin-1-yl)methyl]benzoic acid dihydrochloride, which was prepared from 4-(chloromethyl)benzonitrile via substitution and hydrolysis reactions, to provide the final product imatinib in good yield and high purity.
A novel synthesis of imatinib and its intermediates
摘要:
A convenient method has been developed for the synthesis of imatinib and two of its intermediates. N-(2-Methyl-5-nitrophenyl)-4-(3-pyridyl)-2-pyrimidinamine, obtained from 2-(methylsulfonyl)-4-(3-pyridyl)pyrimidine via nucleophilic substitution, was reduced by N2H4 center dot H2O/FeCl3 center dot 6H(2)O/C in 92% yield. The resulting amine was condensed with 4-[(4-methylpiperazin-1-yl)methyl]benzoic acid dihydrochloride, which was prepared from 4-(chloromethyl)benzonitrile via substitution and hydrolysis reactions, to provide the final product imatinib in good yield and high purity.
The synthesis of several symmetrical polyaromatic compounds with pyridine or diazine units has been achieved by homocoupling of aryl halides with Pd(OAc)2 as catalyst. Cross-coupling reactions of aryl Grignard reagents with Fe(acac)3 as catalyst allowed the synthesis of various unsymmetrical polyaryl- or polyheteroaryl compounds with TTπ-deficient rings.
Azabicyclo [3.1.0] Hexyl Derivatives as Modulators of Dopamine D3 Receptors
申请人:Bertani Barbara
公开号:US20100069416A1
公开(公告)日:2010-03-18
The present invention relates to certain azabicyclo compounds of formula (I)′:
wherein the various groups are defined herein and that are modulators of dopamine D
3
receptors, e.g. to treat drug dependency, as antipsychotic agents, to treat obsessive compulsive spectrum disorders, or premature ejaculation.
Azabicyclo [3.1.0] hexyl derivatives as modulators of dopamine D3 receptors
申请人:Glaxo Group Limited
公开号:US08222266B2
公开(公告)日:2012-07-17
The present invention relates to certain azabicyclo compounds of formula (I)′:
wherein the various groups are defined herein and that are modulators of dopamine D3 receptors, e.g. to treat drug dependency, as antipsychotic agents, to treat obsessive compulsive spectrum disorders, or premature ejaculation.