DIKETO-PIPERAZINE AND PIPERIDINE DERIVATIVES AS ANTIVIRAL AGENTS
申请人:Wang Tao
公开号:US20070249579A1
公开(公告)日:2007-10-25
This disclosure provides compounds having drug and bio-affecting properties, their pharmaceutical compositions and method of use. In particular, the disclosure is concerned with diketo piperazine and piperadine derivatives that possess unique antiviral activity. More particularly, the present disclosure relates to compounds useful for the treatment of HIV and AIDS.
Specifically, the uncatalyzed imination of thiols or sulfinates proceeds with good yields, while under the mild reaction conditions offered by visiblelightphotoredoxcatalysis, the radical amination of hydrazones or the sulfoximidation of benzylic, allylic and propargylic C–H bonds takes place satisfactorily.
The direct asymmetricMichaeladdition of ketones to nitroolefins catalyzed by 2-[(imidazol-2-ylthio)methyl]pyrrolidine, constructed from natural L-proline and imidazolylthio platforms, with salicylic acid as a co-catalyst has been developed to give the products in high yields (up to 95 %) and with excellent enantioselectivities (up to 99 % ee). The highly efficient catalytic performance may be attributed
A novel compound of the formula:
wherein R1 is a halogen atom, an optionally substituted heterocyclic, hydroxy, thiol or amino group; A is an optionally substituted acyl group, an optionally substituted heterocyclic group, an optionally substituted hydroxy group, or an optionally esterified or amidated carboxy group; B is an optionally substituted aromatic group; Y is a divalent aliphatic hydrocarbon group, or a salt thereof, which have an excellent insulin secertion-promoting and blood sugar-depressing effect, and useful in agents for diabetes.
Compounds of the formula ##STR1## wherein n is a integer of 0 to 2; R.sub.1 ' and R.sub.2 ' are, independently, hydrogen, halogen, trifluoromethyl, lower alkoxy or lower alkyl; and X is pyrimidinyl, thiazolyl or ##STR2## wherein R is hydrogen, lower alkyl, aryl or ar-lower alkyl; provided that at least one or R.sub.1 ' and R.sub.2 ' is other than hydrogen, and their pharmaceutically acceptable acid addition salts, and an anti-inflammatory method utilizing a compound of the formula ##STR3## wherein n is an integer of 0 to 2; R.sub.1 and R.sub.2 are, independently, hydrogen, halogen, trifluoromethyl, nitro, amino, lower alkylamino, di-lower-alkylamino, lower alkoxy or lower alkyl; and X is pyrimidinyl, thiazolyl or ##STR4## wherein R is hydrogen, lower alkyl, aryl or ar-lower alkyl; and their pharmaceutically acceptable acid addition salts, are described.