Para-terphenyl compounds
US7220783B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2003 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | May 23, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/123
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a selective suppressor of the IgE production comprising a compound which suppresses the IgE production in a process from a differentiation of a mature B cell into an antibody-producing cell to the production of an antibody and which does not suppress or weakly suppresses the production of IgG, IgM and/or IgA which are produced at the same time, a compound of the formula (I):wherein R1–R13 are hydrogen, halogen, lower alkyl, lower alkoxy or the like, X is —O—, —CH2—, —NR14— or —S(O)p- and Y is lower alkyl, lower alkenyl or the like, a process for producing the same and a pharmaceutical composition comprising the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.