Abstract:
본 발명은 액정표시장치의 보상필름용 액정화합물로, 보다 상세하게는 할로겐 함유 트리페닐렌계 반응성 메조겐 화합물에 관한 것이다. 할로겐 함유 트리페닐렌계 반응성 메조겐 화합물은 복굴절율이 높아 보상필름을 박막으로 제조할 수 있으며 이 보상필름을 채용한 액정장치는 대화면 광시야각을 구현할 수 있는 장점이 있다.
Abstract:
본 발명은 액정표시장치의 보상필름용 액정화합물로, 보다 상세하게는 할로겐 함유 트리페닐렌계 반응성 메조겐 화합물에 관한 것이다. 할로겐 함유 트리페닐렌계 반응성 메조겐 화합물은 복굴절율이 높아 보상필름을 박막으로 제조할 수 있으며 이 보상필름을 채용한 액정장치는 대화면 광시야각을 구현할 수 있는 장점이 있다.
Abstract:
본 발명은 하기 화학식 1로 표시되는 분자 중심에 벤조트리페닐렌이 도입된 신규 중합성 액정 화합물 및 이의 제조방법에 관한 것이다. 본 발명에 따른 상기 신규 중합성 액정 화합물은 투명하고 광학 이방성을 가지므로 광학 보상 필름과 같은 광학 이방성 필름으로 유용하게 사용될 수 있다: [화학식 1]
(상기 화학식 1에서, X, L, Ar, R 및 P는 본 명세서에서 기재한 바와 같다.).
Title translation:7-(3',4'-二烷氧基苯基) - [1,2,4] - 三唑并[1,5-A]吡啶化合物,其制备方法和药物组合物,用于治疗或预防哮喘,慢性阻塞性肺动脉疾病, ARTHRITIS,ATOPIC DERMATITIS,TUMOR AND DEGENERATIVE BRAIN DISEASES COMPATH THE SAME
Abstract:
A 7-(3',4'-dialkoxyphenyl)-[1,2,4]-triazolo[1,5-a]pyrimidine compound is provided to show excellent activity on PDE-4 enzymes and high selectivity on other PDE enzymes and improve vomiting related side effects, which is one most serious problem of the PDE-4 inhibitors, thereby being used as a therapeutic agent of asthma and chronic obstructive pulmonary diseases, arthritis, atopic dermatitis, leukemia, cancer and brain diseases. A 7-(3',4'-dialkoxyphenyl)-[1,2,4]-triazolo[1,5-a]pyrimidine compound is represented by a formula(1) and is prepared by reacting 3-amino-triazole compound represented by a formula(4) with 3-(dimethylamino)-1-(3,4-dialkoxyphenyl)prophenone compound represented by a formula(5) or 3-(3,4-dialkoxyphenyl)3-oxopropionealdehyde compound represented by a formula(6) in the presence of acetic acid. In the formulae, each R1 and R2 is independently H, linear or branched saturated or unsaturated C1-7 alkyl, linear or branched saturated or unsaturated C1-7 alkyl including O, N or S, C3-7 cycloalkyl, C3-7 cycloalkyl including O, N or S, (C3-7)cycloalkyl(C1-7)alkyl, 3 to 7-membered saturated or unsaturated heterocycloalkyl including O, N, or S in a heterocycle, phenyl or benzyl, or R1 and R2 may be linked to each other by C1-3 alkylene or C1-3 alkylene including halogen; R3 is aryl selected from groups(1) to (4). A pharmaceutical composition for treating or preventing diseases related to bronchial inflammation such as asthma and chronic obstructive pulmonary disease, arthritis, atopic dermatitis, leukemia, cancer and brain diseases such as Alzheimer's disease, depression and memory decrease comprises the 7-(3',4'-dialkoxyphenyl)-[1,2,4]-triazolo[1,5-a]pyrimidine compound or a pharmaceutically acceptable carrier as an effective ingredient.
Abstract:
A method for preparing 4-O-protected-D-erythrose is provided to obtain easily and efficiently the 4-O-protected-D-erythrose with high yield using D-erythrolactol as a starting material. A method for preparing 4-O-protected-D-erythrose comprises the steps of: (a) reacting O-isopropylidene-D-erythronolactol represented by the formula(2) with N,N-dimethylhydrazine to prepare D-erythrose-N,N-dimethylhydrazine represented by the formula(3); (b) protecting a hydroxy group of the compound of the formula(3) to prepare 4-hydroxy protected D-erythrose-N,N-dimethylhydrazine compound represented by the formula(4); and (c) oxidizing the compound of the formula(4) through ozonolysis to prepare the 4-O-protected-D-erythrose represented by the formula(1). In the formulae, R1 and R2 are independently H, C1-6, or the R1 and R2 being linked to each other by C4-6 alkylene; and R3 is acetyl, benzoyl, benzyl, trimethylsilyl, triethylsilyl, triisopropylsilyl, dimethylisopropylsilyl, diethylisopropylsilyl, dimethylthexylsilyl, t-butyldimethylsilyl, t-butyldiphenylsilyl, tribenzylsilyl, tri-p-xylysilyl, triphenylsilyl, diphenylmethylsilyl or t-butylmethoxyphenylsilyl protected by a hydroxy protecting group.
Abstract:
본 발명은 화학식 1로 표시되는 신규한 2-아릴-7-(3′,4′-디알콕시페닐)-피라졸로[1,5-а]피리미딘 화합물 또는 그의 약제학적으로 허용 가능한 염, 이의 제조 방법 및 이를 유효성분으로 함유하는 것을 특징으로 하는 천식 및 만성폐쇄성 폐질환(Chronic Obstructive Pulmonary Disease)을 포함한 염증관련 질환의 치료를 위한 약제학적 조성물에 관한 것이다. [화학식1]