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김항섭,김세은,이성우,방희재,김영호,이정준,Kim, Hang-Sub,Kim, Se-Eun,Lee, Sung-Woo,Bang, Hee-Jae,Kim, Young-Ho,Lee, Jung-Joon 한국미생물 · 생명공학회 1994 한국미생물·생명공학회지 Vol.22 No.4
Three more unusual macrolides in addition to concnamycin B were isolated from the mycelium of Streptomyces sp. strain Bal6. These four compounds showed a potent cytotoxity to hunian cancer cell lines, SNU-1 (stomach cancer cell line), SNU-354 (liver cancer cell line), MCF- 7 (breast cancer cell line) and KB-3-1 (oral epidermoid carcinoma cell line). Interestingly, these compounds confered slight differential cytotoxity on RHEK-1, a human epidermal keratinocyte cell line immotalized by AD12-SV40 hybrid virus and RHEK-1/pSV$_{2}$ ras which was resulted from H-ras transfomation of RHEK-1. These compounds were determined to be concanamycin A, conca- namycin E and 0-methyl concanamycin B by NMR and other spectral analysis.
3-(치환) 테트라조일메칠세파로스포린의 합성과 생리활성
고옥현(Ok Hyun Ko),김영수(Young Soo Kim),고봉석(Bong Suk Ko),이재영(Jae Young Lee),하재천(Jai Chun Ha),방희재(Hee Jae Bang),유진철(Jin Cheol Yoo),강형룡(Hyung Ryong Kang) 대한약학회 1998 약학회지 Vol.42 No.1
For the development of new cephalosporin antibiotics with aminothiazolcarboxymethylethoxyimino moiety on the C-7 position and tetrazolymethyl moiety on the C-3 position of cephem ring, 70-[(Z)-2-(2-aminothiazol-4-yl)-2-(1-carboxy-1-methylethoxyimino)acetamido]-3-[5-(substituted)tetrazol-2-yl]methyl-3-cephem-4-carboxylic acids(28-35) were synthesized. These compounds were tested for antimicrobial activity in vitro against Gram(+) and Gram(-) bacteria. They showed remarkable antibacterial activity against Escherichia coli AB 1157, Escherichia coli AB 0111, Escherichia coli BE 1186, Micrococcus luteus ATCC 9341, Salmonella typhimurium TV 119, Salmonella typhimurium SL 1102, Staphylococcus aureus IFO 12732, Staphylococcus aureus R-209, but these compounds were not active against Pseudomonas aeruginosa N-10.