Abstract:
PURPOSE: (S)-Isomer type indoline sulfonyl urea derivatives, a preparation method thereof and a pharmaceutical composition comprising the same are provided. The derivatives have improved anticancer activity and improved hydrophobic properties so as to be easily absorbed into the human body. CONSTITUTION: The (S)-4-phenyl-1-(N-(4-amino-benzoyl)-indoline-5-sulfonyl)- 4,5-dihydro-2-imidazolone derivatives are represented by the formula (1), wherein R is hydrogen, or an amino acid residue which is linked through an amide bond, and selected from glycine, alanine, valine, leucine, methionine, proline and phenylalanine. The method for preparing a compound of the formula (1a) comprises the steps of: combining a compound of the formula (7) with a compound of the formula (8) to prepare (S)-4-phenyl-1-(indoline-5-sulfonyl)-4,5-dihydro-2-imidazolone of the formula (3); reacting the compound of the formula (3) with 4-nitrobenzoylchloride of the formula (4); and reducing a nitro group of the resulting product. The method for preparing a compound of the formula (1b) comprises the steps of: condensing the compound of the formula (1a) with am amino acid of which amino group is protected with t-butoxycarbonyl; and deprotecting the amino group, wherein R' is an amino acid residue which is linked through an amide bond, and selected from glycine, alanine, valine, leucine, methionine, proline and phenylalanine.
Abstract:
PURPOSE: A pharmaceutical composition for prophylaxis and treatment of osteoporosis containing an extract of onion or kale, quercetin or rutin as an effective ingredient is provided. The quercetin or rutin has the excellent function of inhibiting differentiation of osteoclast, is low in cost and has no adverse effect, it can be thus effectively used in the prevention and treatment of osteoporosis. CONSTITUTION: The pharmaceutical composition for prophylaxis and treatment of osteoporosis contains an extract obtained by extracting one of onion and kale in methanol, quercetin represented by formula(1) or rutin represented by formula(2). For an example, onion and kale are extracted in methanol at 80deg.C for 3hr, filtered and washed two times after cooling. The extract is cultured with 200μl osteoclast solution at 37deg.C under 5% CO2 for 1 to 2 day and shows a high inhibition rate of osteoclast.
Abstract:
본 발명은 세포 수용체인 CD4와 인간 면역 결핍 바이러스-1 (human immunodeficiency virus type 1, 이하 "HIV-1"로 약칭함)의 외막 단백질인 gp120과의 상호작용을 저해하는 펩타이드, 그의 용도 및 이 펩타이드의 선별방법에 관한 것으로, 구체적으로는 12개의 아미노산으로 이루어지고 아미노 말단으로부터 4번 아미노산은 프롤린 (proline), 6번 아미노산은 페닐알라닌 (phenylalanine)이고 나머지는 임의의 아미노산인 펩타이드로서 세포 수용체인 CD4와 HIV-1의 외막 단백질인 gp120과의 상호작용을 저해하는 본 발명의 펩타이드는 그 크기가 화학적 합성이 가능한 수준으로 작으면서도 기존의 후천성 면역 결핍증 (acquired immunodeficiency syndrome, 이하 "AIDS"로 약칭함) 치료제의 작용 단계와는 전혀 다른 단계인 HIV-1 바이러스의 감염 초기 단계에 작용하여 세포 수용체인 CD4와 HIV-1의 � ��막 단백질인 gp120과의 상호작용을 특이적으로 저해하므로 새로운 AIDS 치료제로 개발될 수 있을 뿐만 아니라, 다른 AIDS 치료제와 병용되는 복합 치료 방법을 통하여 AIDS 치료에 효과적으로 사용될 수 있는 펩타이드이다. 또한, 본 발명에서는 아가로스 비드 (agarose bead)를 사용하는 특징적인 패닝방법을 사용하여 상기 펩타이드을 효과적으로 선별할 수 있다.
Abstract:
본 발명은 항바이러스제로 유용한 신규의 6-메틸니코틴아미드 유도체, 그의 제조방법 및 그를 포함하는 약학적 조성물에 관한 것으로서, 구체적으로 비핵산계 화합물인 하기 화학식 1로 표시되는 6-메틸니코틴아미드 유도체는 HBV (Hepatitis B Virus) 및 HCV (Hepatitis C virus)의 증식 뿐만 아니라 HIV (Human Immunodeficiency Virus) 증식을 억제하는 효과도 나타내므로 B형 간염과 C형 간염 및 후천성 면역 결핍증의 치료제 및 예방제로 유용하게 사용될 수 있다.
Abstract:
PURPOSE: 6-methylnicotineamide derivatives useful as antiviral agents are provided, thereby inhibiting the growth of hepatitis B virus(HBV), hepatitis C virus(HCV) and human immunodeficiency virus(HIV). CONSTITUTION: The 6-methylnicotineamide derivatives are represented by formula(1), in which R1 is hydroxy, C1 to C5 linear or branched alkyl, C3 to C6 cyclo alkyl, C2 to C6 dialkylamino, or saturated or unsaturated hetero ring having 5 or 6 atoms, in which the hetero ring comprises 1 to 2 hetero atoms selected from N, O or S, and unsubstituted or substituted with C1 to C3 alkyl; and m is an integer of 0 or 1; R2 is hydrogen or C1 to C4 alkyl; or both R1 and R2 form hetero ring having 5 to 6 atoms, in which the hetero ring comprises 1 to 2 hetero atoms selected from N, O or S; and n is an integer of 0 to 4.
Abstract:
PURPOSE: Novel 3-nitropyridine derivatives inhibiting the growth of HBV and HIV, a pharmaceutically acceptable salt thereof, a preparation thereof and an antiviral composition containing the compound as an effective component are provided, which show less adverse effects and can be effectively used for prevention and treatment of hapatitis B and HBV and HIV. CONSTITUTION: The novel 3-nitropyridine derivatives of formula 1 are prepared by the following processes: 2-chloro-6-methoxy-3-nitropyridine of formula 2 and 5-aminoindazole or 6-aminoindazole of the formula; R2-NH2 are reacted in the presence of a base to produce 3-nitropyridine derivative of formula 1a and the obtained 3-nitropyridine derivative is reacted with an amine compound(R1-NH2). In formula, R1 is H, C1-4 straight or branched alkylamino or C3-6 cycloalkylamino; R2 is indazole-5-yl or indazole-6-yl.
Abstract:
PURPOSE: A method for producing TNF Related Apoptosis Inducing Ligand(TRAIL) protein, and for crystallizing the TRAIL protein and the three-dimensional structure thereof are provided, thereby TRAIL protein having improved activity, which specifically kills cancer cells and cells infected by virus, can be produced. CONSTITUTION: The TRAIL having sequence No. 2 is produced by the steps of: inserting the human TRAIL protein gene into a plasmid to produce pET3a-TLS; transforming E. coli with pET3a-TLS to produce E. coli BL21-TLS(pET3a-TLS)(KCCM-10169); incubating the transformed E. coli BL21-TLS(pET3a-TLS)(KCCM-10169) at 22 to 37 deg. C and adding IPTG during incubation to express the TRAIL gene; breaking the cells, collecting insoluble fragments, denaturing and refolding the fragments to collect soluble protein; treating the soluble fragment and soluble protein with cationic exchange chromatography and size excluding chromatography to isolate and purify the TRAIL protein. The TRAIL protein is crystallized by using a solution containing 20 to 40% of PEG MME550, 0.02 to 0.5M of bicine, and 0.02 to 0.5M of sodium chloride, then reacting 24 μg of TRAIL protein and a precipitation solution containing 20 to 30% of PEG MME550, 10 to 100mM bicine, and 5 to 20mM of cadmium chloride. The three-dimensional structure of TRAIL protein consists of an inner sheet comprising strand A, A'', H, C and H; an outer sheet comprising strand B', B, G, D and E; and a loop which links ten strands.
Abstract:
PURPOSE: A composition for rectal administration which contains sodium diclopenac is provided, which is produced easily and cheaply, and has appropriate strength and excellent adhesion activity, so that it is readily administrated via rectum for anti-inflammation, alleviation of pain and removal of fever. CONSTITUTION: The composition comprises 1 to 5 wt.% of sodium diclopenac, 25 to 40 wt.% of two or more solid ploxamer mixture, and 0.1 to 1.0 wt.% of one or more polymer selected from polyethylene oxide and polyvinyl pyrrolidone, in which solid ploxamer mixture contains ploxamer 407 and ploxamer 188 in a weight ratio of 1:1-1.5. The composition optionally contains an antiseptic such as sodium benzoic acid, potassium sorbic acid and parabene, pH adjusting agent such as hydrochloric acid, citric acid, and sodium hydroxide, and stabilizer such as methionine.
Abstract:
본 발명은 위장계통을 자극하는 생리활성을 가지는 다음 일반식(Ⅰ)의 N-(4-피페리딘)벤즈아미드 및 그 약제학적으로 허용되는 부가염의 새로운 제조방법에 관한 것이다. 보다 바람직하게는 다음 일반식(Ⅰ)에서 L이 3-(4-플루오로펜옥시)프로필이고, R이 메틸인 위장 연동운동 촉진제로 사용되는 시사프라이드의 새로운 제조방법에 관한 것이다. 또한 본 발명은 일반식(Ⅰ)의 N-(4-피페리딘)벤즈아미드 제조에 유용한 구조식(Ⅲ)의 새로운“활성티오에스테르”및 그 제조방법에 관한 것이다. 즉, 본 발명은 구조식(Ⅶ)의 카르복실산 유도체와 일반식(Ⅵ)의 알킬클로로포르메이트를 반응시켜 일반식(Ⅴ)의 중간체를 생성시킨 후 일반식(Ⅴ)의 중간체와 구조식(Ⅳ)의 2-머캅토벤즈이미다졸을 반응시켜 구조식(Ⅲ)의 새로운“활성티오에스테르”를 제조한 다음, 일반식(Ⅱ)의 시스-피페리딘아민 유도체와 반응시켜 목적화합물인 일반식(Ⅰ)의 시스프라이드를 포함하는 벤즈아미드 유도체를 제조하는 방법에 관한 것이다.
상기 식에서 L은 아르알킬 또는 아릴옥시알킬인데, 이때 알킬부분은 C 1 -C 6 의 알킬이고, 아릴부분은 할로, C 1 -C 6 의 저급알킬 또는C 1 -C 6 의 저급알콕시로부터 독립적으로 선택된 3개까지의 치환체로 임의치환된 것이고; R은 C 1 -C 6 의 저급알킬이며; R 1 은 에틸, 이소프로필 또는 이소부틸이다.
Abstract:
본 발명은 토양에서 분리된 웨스터디켈라 멀티스포라( Westerdykella multispora ) 균주의 배양액으로부터 분리 정제된, IV형 콜라게네이즈(type IV collagenase)의 활성을 저해하는 신규 화합물, 이의 제조방법 및 이를 포함하는 IV형 콜라게네이즈(type IV collagenase) 활성 저해용 조성물에 관한 것으로, 본 발명에 따라 웨스터디켈라 멀티스포라의 배양액으로부터 분리 정제된 신규 화합물 3-(5-(헥사-2,4-디에닐리덴)-2-옥소-5,6-디하이드로-2H-피란-3-일)-프로피온산은 IV형 콜라게네이즈의 활성을 저해하는 작용이 우수하므로 암전이 및 종양의 예방 및 치료제로서 이용될 수 있다.