Abstract: This disclosure provides a proxy relationship processing method and system, a proxy server, and a terminal, where the method includes: the proxy server receiving a service content request sent including an account of a first terminal and a service item by another terminal; searching, according to the account of the first terminal, a preset proxy relationship table corresponding to the account of the first terminal to obtain a proxy-enabled service item from the proxy relationship table; and if it is learned, according to the proxy relationship table, that the service item is the proxy-enabled service item, sending the service content request to a second terminal corresponding to the proxy-enabled service item, so that the second terminal sends a service content request response to the other terminal according to the service content request. This resolves problems of limited application and low proxy efficiency of an existing proxy relationship processing method.

Abstract: Embodiments of the present invention provide a method and an apparatus for processing contact information. The method includes: receiving an instant message from a peer end; determining whether the instant message includes a contact keyword related to local contact information; if the instant message includes a contact keyword related to local contact information, determining to prompt a user to send contact information corresponding to content of the instant message in the local contact information to the peer end. The method and the apparatus for processing contact information provided by the embodiments of the present invention can improve efficiency in processing contact information.

Abstract: A process for preparing Erianin (Dihydro Combretastation A-4), wherein 3,4,5-trimethoxy benzaldehyde is converted to phosphonium salt or phosphonate ester or the likes thereof, then reacted with isovanillin (3-hydroxyl-4-methoxyl benzaldehyde) including a protected hydroxyl in the 3-position, followed by hydrogenation and deprotection.

Abstract: A process for preparing Erianin (Dihydro Combretastation A-4), wherein 3,4,5-trimethoxy benzaldehyde is converted to phosphonium salt or phosphonate ester or the likes thereof, then reacted with isovanillin (3-hydroxyl-4-methoxyl benzaldehyde) including a protected hydroxyl in the 3-position, followed by hydrogenation and deprotection.