Lucky Limited

Panagene Inc.

Jong Chan Lim

Sung Hee Lee

Hyunil Lee

Sung Kee Kim

Yong Z Kim

Chan S Bang

Jae H Yeo

Hoon Moo Choi

Hun S Oh

Sang Youl Ahn

Jae Hoon Jeon

Won Jun Yoon

Won Sik Kim

Hyeon Joo Yim

Young M Woo

Sam S Kim

Se Hun Kim

Tae Hee Lee

Jae Hwan Jeon

Sung Kyung Kim

Mi K Seo

Jae Wang Lee

Hee Kyung Park

Jung Hyun Min

Jae Jin Choi

Duk H Yang

Deog H Yang

Woo H Kim

Soon H An

Sung I Kim

Tae S Kwon

Bong J Park

Mu Y Kim

Seong N Kim

Hee M Oh

Serka Kim

Sung Jin Ha

Jin Won Yun

This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oglimers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: wherein

PNA monomer and precursor

This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: 

This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: wherein

This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: wherein wherein

Method of making PNA oligomers

This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: wherein E is nitrogen or C&#x2014;R'; J is sulfur or oxygen; R&#x2032;, R1, R2, R3, R4 is independently H, halogen, alkyl, nitro, nitrile, alkoxy, halogenated alkyl, halogenated alkoxy, phenyl or halogenated phenyl, R5 is H or protected or unprotected side chain of natural or unnatural &#x3b1;-amino acid; and B is a natural or unnatural nucleobase, wherein when said nucleobase has an exocyclic amino function, said function is protected by protecting group which is labile to acids but stable to weak to medium bases in the presence of thiol.

This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers:wherein

The present invention relates to a cephalosporin compound represented by the following general formula (I), its pharmaceutically acceptable non-toxic salt, physiologically hydrolyzable ester, hydrate or solvate, or isomers thereof, which is useful as an antibiotic agent: ##STR1## in which R.sup.1 represents hydrogen or an amino-protecting group,

Cephalosporin antibiotics and processes for preparation thereof

Cephalosporin compounds of formula (I): ##STR1## wherein: R.sup.1 is a hydrogen or an amino protecting group;

Cephalosporin antibiotics

The present invention provides a process for preparing cephem derivatives having the following general formula (I): ##STR1## in which R.sup.1 represents a carboxy group or a protected carboxy group which can form the salt of --COO.sup.- M.sup.+ with an alkali metal ion (M.sup.+) such as sodium, or may represent --COO.sup.- when R.sup.2 has a substituent having positive electric charge such as pyridinium, pyrimidinium or thiazolium,

Process for preparing cephalosporin compounds from reactive organic acid

The present invention relates to a cephalosporin compound represented by the following general formula (I): ##STR1## its pharmaceutically acceptable non-toxic salt, physiologically hydrolyzable ester, hydrate or solvate, or isomers thereof, in which

The present invention relates to a novel reactive thiophosphate derivative of thia(dia)zole acetic acid which can be very effectively used in the preparation of .beta.-lactam antibiotics, and which is represented by the following general formula (I): ##STR1## in which R.sup.1 represents hydrogen or an amino-protecting group;

Reactive thiophosphate derivatives of thia(dia)zole acetic acid and

The present invention provides a cephalosporin compound represented by formulas (I-S) and (I-R) ##STR1## wherein: R.sup.1 is a C.sub.1-4 alkyl, C.sub.3-4 alkenyl, C.sub.3-4 cycloalkyl, amino optionally substituted with a C.sub.1-4 alkyl radical, phenyl, or 2-,4- or 6- substituted phenyl group with two or fewer substitutents chosen from C.sub.1-4 alkyl, C.sub.1-3 alkoxy, halogen and hydroxy radicals;

Growing community of inventors

Daejeon, South Korea

Jong Chan Lim