Radical products of the oxidation of 2,2-diacyl-1-arylhydrazines with the system Pb(OAc)4-CF3COOH-CH2Cl2
摘要:
The oxidation of 2,2-Diacyl-1-arylhydrazines 1a-l with the system Pb(OAc)(4)-CF3COOH-CH2Cl2 led to the formation of two types of radical products. Phenazinium cation radicals 5a-h were formed from 2,2-diacyl-1-arylhydrazines 1a-h, while hydrazyl radicals 2i-l were observed to be the only radical products of the oxidation of 1i-l. The generated radicals are characterized by their EPR parameters.
Pharmaceutical composition comprising phenyl acetyl glutamine,a combination of this compound with phenylacetic acid or 3-(phenylacetylamino)piperidine-2,6-dione,a process for isolating the latter from urine and a process for the synthesis of 3-(phenylacetylamino)piperidine-2,6-dione
申请人:BURZYNSKI, Stanislaw R.
公开号:EP0069232A2
公开(公告)日:1983-01-12
Highly purified fractions from human urine exhibiting antineoplastic activity and processes for their preparation are described. The fractions comprise biologically active, small sized, low molecular weight peptides which exert cytostatic and cytotoxic activity toward neoplastic cell cultures and human neoplastic diseases. The fractions have been termed antineoplaston fractions. An antineoplastic active peptide common to each of the various antineoplaston fractions has been isolated and identified as 3-[N-phenylacetylaminopiperidinel-2, 6 dion. A synthetic mechanism for the preparation of 3-[N-phenylacetyl- aminopiperidine]-2, 6-dion is also disclosed, involving a combination reaction between L-glutamine and phenylacetyl chloride. Also disclosed are the hydrolysis degradation products of 3-[N-phenylacetylaminopiperidine)-2, 6-dion which also exhibit antineoplastic activity when administered according to the general teachings presented in this disclosure.
Schulz, Manfred; Kluge, Ralph; Willscher, Sabine, Liebigs Annalen der Chemie, 1987, p. 671 - 678
作者:Schulz, Manfred、Kluge, Ralph、Willscher, Sabine
DOI:——
日期:——
SCHULZ, MANFRED;KLUGE, RALPH;WILLSCHER, SABINE, LIEBIGS ANN. CHEM.,(1987) N 8, 671-678
作者:SCHULZ, MANFRED、KLUGE, RALPH、WILLSCHER, SABINE
DOI:——
日期:——
Radical products of the oxidation of 2,2-diacyl-1-arylhydrazines with the system Pb(OAc)4-CF3COOH-CH2Cl2
作者:L. Omelka、R. Kluge、M. Schulz
DOI:10.1007/bf00812244
日期:1995.2
The oxidation of 2,2-Diacyl-1-arylhydrazines 1a-l with the system Pb(OAc)(4)-CF3COOH-CH2Cl2 led to the formation of two types of radical products. Phenazinium cation radicals 5a-h were formed from 2,2-diacyl-1-arylhydrazines 1a-h, while hydrazyl radicals 2i-l were observed to be the only radical products of the oxidation of 1i-l. The generated radicals are characterized by their EPR parameters.
GRUDZINSKA P., ACTA POL. PHARM., 1976, 33, NO 3, 311-319