Piperazine salt

Piperazine Salts. Pipera2ine citrate is highly effective against bothM. lumbricoides (large roundworm) and E. vermicularis (pinworm). A large number of substituted pipera2ine derivatives exhibit anthelmintic activity however, only diethylcarbama2ine (9) is used clinically (26). 

Chemical Name 2-Hydroxy-5-[ [(4-methylphenyl)sulfonyll oxyl benzenesulfonic acid, piperazine salt... 

The monotosylation of 2,5-dihydroxybenzenesulfonicacid iscarried out in a pyridine medium by treating it with tosyl chloride, thus preferably isolating the 2-hydroxy-5-tosyloxybenzene-sulfonic acid, pyridine salt. This product subjected to reflux with an alcoholic solution of piperazine yields 2-hydroxy-5-tosyloxybenzenesulfonic acid, piperazine salt. 

Dihydroxy benzene sulfonic acid Sultosilic acid piperazine salt... 

Mimedran - Sultosilic acid piperazine salt Mincard - Aminometradine... 

Derivatization of a-aminosuberic acid to produce selectively protected derivatives such as Z-L-Asu(OtBu)-OH 16 is performed as outlined in Scheme 6. Using Z-l-Asu-OH 13 as starting material, conversion into a-benzyl ester 14 by treatment with Bzl-Br, followed by reaction with isobutene/H2S04 and saponification of the benzyl ester 15 leads to the desired product 16 as the piperazine salt.124 ... 

This spectral behavior dependent on amine concentration is interpreted by the formation of a 1 1 ratio saltex for the case of less than 500 eq. amine and of a 1 2 (= 48 piperazine) salt for the case of more than 500 eq. amine. The 1 1 saltex was prepared in quantitative yield in chloroform and characterized by H-NMR and X-ray analysis (Fig. 14) [24], The 1 2 salt is presumed to be a structure bearing... 

Piperazine Estrone Sulfate (3-Sui.FOxv-E iTiu-l,3,5(l0)-TRIEN-17-ONF. Piperazine Salt), USP. All the estrone 3-.sulfate salts have the obvious pharmaceutical advantage of increased water solubility and better oral absorption. Acids convert the salts to the free 3-sulfate esters and cause some hydrolysis of the ester. This does not seem to affect absorption adversely, but precipitation of the free sulfate esters in acidic pharmaceutical preparations should be avoided. The dibasic piperazine molecule acts as a buffer, giving it somewhat greater stability. 

Piperazine salt, C2JHJ0N4O2, pyrazinobutazone, pyrasa-none, Carudol, Dartranol, Ranoroc. mp 140-141 (solidifies and remelts at -180"). 

Methoxy-a-mettlyl-2-napthaleneacetate piperazine salt (2 1). EINECS 275-083-1 Naproxen piperazine salt Numidan Numide Piproxen, Anti-inflammatory analgesic antipyretic. Syntax Labs. Inc. 

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