Hydroxybutenolide derivatives, production and use thereof
申请人:Takeda Chemical Industries, Ltd.
公开号:US04939274A1
公开(公告)日:1990-07-03
The present invention relates to a compound of the formula: ##STR1## wherein Y is a chemical bond, oxygen atom, phenyleneoxy, or oxyphenyleneoxy; R.sup.1 is hydrogen or hydrocarbon residue; and R.sup.2 is hydrocarbon residue having two or more carbon atoms, production and use thereof. The compound (I) of the present invention has an antioxidation activity and activities of preventing or improving functional disorders due to biologically active oxygen species, thus being useful as a pharmaceutical agent for prophylaxis and therapy of disorders in the circulatory system.
Properties of aqueous solutions of surfactants, Cn−1H2n−1OCH2COONa (n−1=12–18), which may be nontoxic, non-allergic and bio-degradable, have been studied. The Krafft points in aqueous solutions of these surfactants are close (+8.5–−1.5 °C) to those of the corresponding fatty acid soaps RnCOONa. The critical micelle concentrations are also close to those of corresponding fatty acid soaps in spite of the introduction
The invention describes a process for stabilizing an organic material against oxidative, thermal or light-induced degradation, which comprises incorporating therein or applying thereto at least a compound of the formula (I) wherein the general symbols are as defined in claim
1
. The compounds of the formula I are especially useful as processing stabilizers for synthetic polymers.
申请人:CHONG KUN DANG PHARMACEUTICAL CORP. 주식회사 종근당(120130602125) Corp. No ▼ 110111-5260669BRN ▼110-86-08069
公开号:KR102227100B1
公开(公告)日:2021-03-12
본 발명은 신규한 도네페질 에테르 팔미테이트(donepezil ether palmitate) 또는 이의 약제학적으로 허용가능한 염, 및 이를 주성분으로 포함하는 서방형 약제학적 조성물에 관한 것이다. 본 발명의 도네페질 에테르 팔미테이트는 도네페질에 에테르 팔미테이트기를 도입함으로써, 체내 투여시 활성성분인 도네페질의 초기 방출을 감소시켜 약물 독성 등의 부작용에 대한 위험을 감소시키고, 체내에서 도네페질이 장기간 균일하게 방출되어 치매환자의 약물 치료 효과를 향상시킬 수 있다.
Macrocyclic oxalactones ( dioxacycloalkan-ones ) and their use as perfumes
申请人:PFW AROMA CHEMICALS B.V.
公开号:EP1099698A1
公开(公告)日:2001-05-16
The invention relates to a novel class of macrocyclic oxalactones which are highly useful for use as perfumes. The compounds according to the invention have a very desirable fresh and floral musk odor in combination with other advantageous properties, such as stability, and substantivity.