Synthesis and spectral properties of [3-(heptyloxy)phenoxy]acetic acid and its derived meso-sibstituted tetrabenzoporphyrins
摘要:
3-Heptyloxyphenol was obtained by reaction of resorcinol with 1-bromoheptane. Further alkylation with monochloroacetc acid resulted in the synthesis of [3-(heptyloxy)phenoxy]acetic acid. Heating of the latter with phthalimide in the presence of zinc acetate afforded zinc complexes of meso-[(3-heptyloxy)phenoxy] tetrabenzoporphyrins whose demetalization gave free porphyrin bases. Spectral properties of the synthesized compounds were studied.
The present invention relates to active delivery system formulations, and methods of making and using the same. Said formulations, when applied to a substrate surface, form a protective coating on the surface and permit constituent active agents to act on the surface and in the surrounding medium.
temperature mesophase of Colro(P21/a). This means that melting of the alkyl chains induces the Colho phase in the lower temperature region, but that flip-flop of the bulky aromatic substituents induces the Colro(P21/a) phase in the higher temperature region. This unusual reverse phase transition sequence from a higher symmetry of the Colh mesophase to a lower symmetry of the Colr mesophase on a heating
Alkyl or alkoxy substituted S-heterocyclic retinoids
申请人:Hoffmann-La Roche Inc.
公开号:US05391766A1
公开(公告)日:1995-02-21
Compounds of the formula ##STR1## in which X is --S--, --SO-- or --SO.sub.2 --; R.sup.1 is C.sub.7-10 -alkyl or C.sub.7-10 -alkoxy; R.sup.2 is a residue of the formula ##STR2## R.sup.3 is carboxy or lower-alkoxycarbonyl; and n is an integer of 1, 2 or 3; and salts of carboxylic acids of formula I can be used for the treatment of autoimmune diseases and diseases having a strong immunological component, such as psoriasis.
Methods of delaying the onset of an infection or preventing an infection caused by a microbial organism in an internal cavity of a subject are provided. Methods of killing or inactivating microorganisms in at least a portion of the urethra of a subject are provided.