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17 3 2005 6 Chinese Bulletin of Life Sciences Vol. 17, No. 3 Jun., 2005 1004-0374(2005)03-0211-07 201203 (Helicobacter pylori) R975.6A Advances in studies on novel agents against Helicobacter pylori LIU Qing, WANG Ming-Wei* (National Center for Drug Screening, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, China) Abstract: Helicobacter pylori is a well-recognized cause for gastritis, peptic ulcer and carcinoma of the stomach. With wide use of broad-spectrum antibiotics, drug-resistant strains of Helicobacter pylori have been emerged in a rapid pace. Development of highly efficacious and selective agents against Helicobacter pylori is thus becoming a focal point that attracts global attention. This article reviews a series of new drugs or lead candidates with inhibitory effects on Helicobacter pylori reported in the literature during recent five years, with an aim of providing some useful insights to research and development of novel drugs to treat Helicobacter pylori infection. Key words: research progress; anti-helicobacter pylori drugs (Helicobacter pylori, H. pylori, HP) 1983 Warren Marshall [1] [2~3] ph [4] 2005-04-04 2002AA2Z343AKSCX1-SW-11-2 (1978 ) (1956 ) *

212 (PPI) PPI ( ) ( ) [5~6] ( TAK-083 ) 1 1.1 NE-2001 TG44 NE-2001 TG44 DNA NE-2001 ATCC 43504 12 MIC 0.4~1.6 µg/ml NE-2001 NE-2001 [7~8] 1.2 TAK-083 TAK-083 [9] TAK-083 54 MIC 90 0.031µg/ml (MIC 90 0.125µg/ml 64µg/ml 8µg/ml) TAK-083 -trna ( ) - trna TAK-083 ph (4.5~7.5) 1.3 Tomb [10] Alm [11] () (DHODase) Copeland [12] (R1= R2= N- ) DHODase DHODase( 2 ) Q DHODase 1 Q ( R1= R2=N- )(MIC 2~8µ g/ml) ATCC25238 (-) ATCC25285 (-) ATCC25922 (-) tolc (-) ATCC27853 (-)

213 ATCC49766 (-) ATCC29212 (+) ATCC13709 (+) ATCC12962 (+) MIC 64 µg/ml 1.4 Plaunotol Koga [13] Plau-noi Plaunotol() 5-doxyl- ( ) 16-doxyl ( ) Plaunotol Plaunotol Plaunotol Tago [14] Plaunotol [R 1 = OH NHC(S)NHPh NHC(S)NHCH 2 Ph NHC(S) NHCH 2 CH 2 Ph R 18 = OH NHC(S)NHPh NHC(S) NHCH 2 Ph NHC(S)NHCH 2 CH 2 Ph] R 1 = NHC (S)NHCH 2 CH 2 Ph R 18 = OH Plaunotol ( NCTC11637 ) MIC 0.10 µg/ml, 1.5 ADP- NAD ADP- ADP- (R= 3-4- ) ADP- ADP- [15]

214 1.6 3-( )- N- (R=Ph 3-F-Ph 2-Cl-Ph 3-Cl-Ph 4-Cl-Ph 3-Br-Ph 4-Br-Ph 3-Me-Ph 3-MeO- Ph 3-PhCH 2 O-Ph 3-NO 2 -Ph 3-OH-Ph 1-2- 3-3,4-3- 2-MeO- 2,3-Cl 2-1- 2- ) [16] 3-[2-( - 2-) ]- N- MIC ph 7.0 6.0 5.0 0.063µg/ml, MIC 0.031µg/ml 0.125µg/ml 0.5µg/ml 0.063µg/ml 0.5µg/ml 2.0µg/ml 1.7 2-2-()-4- [R=C1-C4 Me 2 CH (CH 2 ) 2, CF 3 CH 2, CH 3 O(CH 2 ) 2, CH 3 S(CH 2 ) 2, Me 2 N(CH 2 ) 2, AcNH(CH 2 ) 2, Ph(CH 2 ) 2, 2- MeOPh(CH 2 ) 2, 3-MeOPh(CH 2 ) 2, 4-MeOPh(CH 2 ) 2, aryl ] [17~18] (100 µg/ml) 1.8 FR193879 FR193879 [19] β- 1.9 Nitazoxanide Tizoxanide Nitazoxanide (NTZ) [20~21] Nitazoxanide Tizoxanide(TIZ) MIC 90 8µg/ml

215 1.10 (X=O NH R=-NHCOCH2NH2 -NHAc) [22] 3- - 2 6- MIC 0.0125~0.05µg/ml 1.11 KRM-1657 KRM-1648 KRM-1657 KRM- 1648 [23] 44 MIC 90 0.002µg/ml 0.008µg/ml 2 2.1 (Rebamipide) Hayashi [25] MKN-28 MKN-45( ) MKN-28 1.12 β- β- [24] 2.2 (Rabeprazole) [26] (Rabeprazole-TH) ph 7.4 Rabeprazole-TH 50% 0.25~0.5µg/ml 8~32µg/ml 8~16µg/ml 128~256µg/mlRabeprazole- TH MIC 90 0.5µg/ml

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