The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2005
Filed:
Aug. 06, 2001
Cheol-hae Lee, Taejon, KR;
Bong-jin Kim, Taejon, KR;
Do-kyu Pyun, Taejon, KR;
Won-jang Jeong, Pusan, KR;
Jae-hak Kim, Taejon, KR;
Hee-jung Chung, Taejon, KR;
Hyun-jung Kwak, Pusan, KR;
Eun-jung Kim, Taejon, KR;
Shin-seup Song, Choongchungnam-do, KR;
Yong-ho Chung, Kyunggi-do, KR;
Cheol-hae Lee, Taejon, KR;
Bong-jin Kim, Taejon, KR;
Do-kyu Pyun, Taejon, KR;
Won-jang Jeong, Pusan, KR;
Jae-hak Kim, Taejon, KR;
Hee-jung Chung, Taejon, KR;
Hyun-jung Kwak, Pusan, KR;
Eun-jung Kim, Taejon, KR;
Shin-seup Song, Choongchungnam-do, KR;
Yong-ho Chung, Kyunggi-do, KR;
Dong Wha Pharm, Ind. Co., Ltd., Seoul, KR;
Korea Research Institute of Chemical Technology, Taejon, KR;
Abstract
There is disclosed an azetidinone compound of the formula (I):wherein R is hydrogen, or a hydroxy protecting group, Rand Rare each independently alkyl of 1-15 carbon atoms, benzyl or cyclized together with the carbon atom to which they are attached to form a 5 or 6-membered cyclic hydrocarbon or a heterocyclic radical having one or two hetero ring atoms, said hetero ring atoms being selected from the group consisting of O and S; Ris lower alkyl or —COO(lower alkyl) Ris phenyl, or phenyl substituted with halogen, lower alkoxy or nitro which is useful as a synthetic intermediate to the 1'β-methylcarbapenem-type antibacterial agent.