Abstract:
Methods for preparing intermediates for 21-alkylated corticosteroids are discloded. Pregna-1,4,16-trien-3,20-diones are contacted with a base and an alkylating agent to produce corresponding 21-alkylated pregna-1,4,16-trien-3,20-diones.
Abstract:
Disclosed are preservative systems useful in aqueous pharmaceutical compositions containing an active agent and a cyclodextrin. The preservative systems comprise boric acid and one or more compounds selected from the group consisting of C16 benzalkonium halide compounds, polymeric quaternary ammonium compounds, and quaternary ammonium alkylene glycol phospholipid derivatives of structure (I), where a + b = 3; R is C8-C22 alkyl or alkene; X is NH, O or CH2; R is C2-C6 alkyl; each R is independently C1-C12 alkyl or alkene; and Y is nothing or C1-C6 alkyl or alkene; and pharmaceutically acceptable salts thereof.
Abstract translation:公开了可用于含有活性剂和环糊精的水性药物组合物中的防腐剂体系。 防腐体系包括硼酸和一种或多种选自C16苯扎氯铵化合物,聚合季铵化合物和结构(I)的季铵亚烷基二醇磷脂衍生物的化合物,其中a + b = 3; R 1是C 8 -C 22烷基或烯烃; X是NH,O或CH 2; R 2是C 2 -C 6烷基; 每个R 3独立地为C 1 -C 12烷基或烯烃; 且Y不为或C 1 -C 6烷基或烯烃; 及其药学上可接受的盐。
Abstract:
A diffractive, multifocal ophthalmic lens including an apodization zone with echelettes having a smoothly reduced step height to shift the energy balance from the near image to the distant image and thus reduce the glare perceived when viewing a discrete, distant light source.
Abstract:
Compounds useful as cytoprotective agents of formula (I), wherein z = (a) and (b); n = 0-12; m = 0-12; X = nothing, NR , O, or S(O)n'; provided that when X = NR , O, or S(O)n', then m>0 and n>0; n' = 0-2; R = H, C1-C6 alkyl; R = OH or a pharmaceutically acceptable salt thereof, C1-C6 alkoxyl, amino, mono- or dialkylamino where the alkyl has from 1 to 4 carbon atoms, or a radical of an amino acid of the formula: -NH-(CH2)n-CH(R )-CO-R ; R = H, C1-C4 alkyl, optionally substituted by hydroxy, SH, SCH3, or (un)substituted phenyl; and R = OH, C1-C6 alkoxyl, amino, or mono- or dialkyl amino where the alkyl has from 1 to 4 carbon atoms. The compounds possess dual activity, containing a phenolic portion selected to have antioxidant or free radical scavenging properties and a thiazolidine-4-carboxylate portion selected for its potential to act as a cysteine prodrug.
Abstract translation:可用作式(I)的细胞保护剂的化合物,其中z =(a)和(b); n = 0-12; m = 0-12; X =无,NR 1,O或S(O)n'; 条件是当X = NR 1,O或S(O)n'时,则m> 0且n> 0; n'= 0-2; R 1 = H,C 1 -C 6烷基; R = OH或其药学上可接受的盐,其中烷基具有1至4个碳原子的C 1 -C 6烷氧基,氨基,一或二烷基氨基,或下式的氨基酸基团-NH-(CH 2)n -CH(R <2>) - CO-R <3>; R 2 = H,任选被羟基取代的C 1 -C 4烷基,SH,SCH 3或(未)取代的苯基; 和R 3 = OH,C 1 -C 6烷氧基,氨基或单或二烷基氨基,其中烷基具有1至4个碳原子。 该化合物具有双重活性,其含有被选择具有抗氧化剂或自由基清除性质的酚类部分和选择用作半胱氨酸前药的潜力的噻唑烷-4-羧酸酯部分。
Abstract:
The invention relates to polymeric quaternary ammonium compounds which are useful as disinfectants and/or preservatives in ophthalmic compositions.
Abstract:
A single piece soft foldable IOL having open loop haptics of specific thickness and geometry. The unique geometry provides an IOL with improved fixation and centration.
Abstract:
Methods for treating persons with glaucoma or ocular hypertension with polyamine antagonists and an IOP-lowering compounds are also disclosed.
Abstract:
Stable, comfortable, preserved, topical, ophthalmic compositions of acid drugs and their use for treating inflammation of the eye are disclosed. The compositions contain an acidic drug (e.g. a NSAID, preferably diclofenac, or a prostaglandin), Vitamin E. TPGS, Benzalkonium chloride or homologues thereof and caffeine.
Abstract:
The use of certain amidoamines to disinfect contact lenses and preserve ophthalmic compositions is described. Ophthalmic compositions containing these compounds as disinfecting agents or preservatives are also described. The amidoamines utilized in the present invention have potent antibacterial and antifungal activity, and are chemically compatible with inorganic ions and other materials utilized in ophthalmic compositions.