Synthesis of Pyrene and Benzo[<i>a</i>]pyrene Adducts at the Exocyclic Amino Groups of 2‘-Deoxyadenosine and 2‘-Deoxyguanosine by a Palladium-Mediated C−N Bond-Formation Strategy
作者:Mahesh K. Lakshman、Felix N. Ngassa、Suyeal Bae、Dennis G. Buchanan、Hoh-Gyu Hahn、Heduck Mah
DOI:10.1021/jo030113b
日期:2003.7.1
with the purine 2'-deoxynucleosides to date. In this paper we disclose the synthesis of the model adducts N(6)-(1-pyrenyl)-2'-deoxyadenosine and N(2)-(1-pyrenyl)-2'-deoxyguanosine as well as the first synthesis of the carcinogen-linked nucleoside derivatives N(6)-(6-benzo[a]pyrenyl)-2'-deoxyadenosine and N(2)-(6-benzo[a]pyrenyl)-2'-deoxyguanosine via a palladium-mediated C-Nbondformation. Two different
Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system
申请人:Iso Kenichi
公开号:US20050261141A1
公开(公告)日:2005-11-24
The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.
Grease compostion for automobile electrical equipment auxiliary device and prelubricated rolling using the grease composition
申请人:Fujita Yasunobu
公开号:US20060073989A1
公开(公告)日:2006-04-06
To provide a grease composition for auxiliary machinery of automobile electrical component containing an aromatic ester oil-containing base oil having a specific diurea compound as a thickener blended therewith and a rolling bearing having the foregoing grease composition packed therein. The foregoing grease composition and rolling bearing do not generate abnormal noises even at an extremely low temperature of −40° C., have excellent seizure resistance even under a high temperature closed to 180° C., have excellent rust preventing performance, and are suitable especially for electrical parts and auxiliary machineries of engines, etc.
[EN] 6-AMINO-1,2-BENZOPYRONE ANTITUMORIGENIC AGENTS AND METHOD
申请人:THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
公开号:WO1989007441A1
公开(公告)日:1989-08-24
(EN) 6-amino-1,2-benzopyrone is administered as a chemopreventative, or antitumorigenic agent, to inhibit tumor-igenicity in a mammalian host. Preferably, the administering is by a daily oral dose and provides about 100 mg per day.(FR) On administre à un mammifère hôte 6-amino-1, 2-benzopyrone en tant qu'agent chimiopréventif ou anti-oncogène afin d'inhiber la formation de tumeurs. De préférence, l'administration se fait par une dose orale quotidienne d'environ 100 mg par jour.
The three most important "superbase" anionic building blocks are contained in the striking decalithium aggregate in the structure of which a single lithium atom is surrounded solely by an amide, an alkoxide, and a carbanion.