Justicia lignans V. Three new β-apolignans from Justicia neesii Ramamoorthy
摘要:
The isolation and characterization of three new beta-apolignans, namely, 1,4-dihydrotaiwanin C (3), jusneesiin (4) and jusneesiinol (5), in addition to (-) hibalactone (6), from J. neesii are reported. Compounds 4 and 5 are unprecedentedly angularly fused beta-apolignans and the structure of 5 was confirmed by X-ray diffraction data. (C) 1998 Elsevier Science Ltd. All rights reserved.
[EN] NOVEL ANTIVIRAL HELIOXANTHIN ANALOGS<br/>[FR] NOUVEAUX ANALOGUES ANTIVIRAUX DE L'HELIOXANTHINE
申请人:UNIV YALE
公开号:WO2005107742A1
公开(公告)日:2005-11-17
The present invention relates to novel antiviral helioxanthin analogs. These compounds may particularly be used alone or in combination with other drugs for the treatment of the following: hepadnaviruses, flaviviruses, herpesviruses and human immunodeficiency virus. In addition, compounds according to the present invention can be used to prevent or reduce the likelihood of the occurrence of tumors secondary to virus infection as well as other infections or disease states that are secondary to the virus infection.
The present invention relates to novel antiviral helioxanthin analogs. These compounds may particularly be used alone or in combination with other drugs for the treatment of the following: hepadnaviruses, flaviviruses, herpesviruses and human immunodeficiency virus. In addition, compounds according to the present invention can be used to prevent or reduce the likelihood of the occurrence of tumors secondary to virus infection as well as other infections or disease states that are secondary to the virus infection.
The present invention relates to novel antiviral helioxanthin analogs. These compounds may particularly be used alone or in combination with other drugs for the treatment of the following: hepadnaviruses, flaviviruses, herpesviruses and human immunodeficiency virus. In addition, compounds according to the present invention can be used to prevent or reduce the likelihood of the occurrence of tumors secondary to virus infection as well as other infections or disease states that are secondary to the virus infection.
A transglutaminase activator containing at least one kind selected from the group consisting of an extract from
Justicia procumbens
, an extract from
Peristrophe japonica
, and a compound represented by Formula (1), as an active ingredient:
wherein R
1
and R
2
represent a hydrogen atom, a hydroxyl group, or an alkoxy group having 1 to 4 carbon atoms; R
3
represents a hydrogen atom, or a group for forming a methylenedioxy group by bonding with R
2
; R
4
and R
5
represent a hydrogen atom, or a group for forming a methylenedioxy group by bonding with each other; R
6
represents a hydrogen atom, a hydroxyl group, an alkoxy group having 1 to 5 carbon atoms, an acyloxy group having 1 to 4 carbon atoms, or a specific sugar residue.