𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Metabolism of DL-[14C]prenylamine in man

✍ Scribed by G. Remberg; M. Eichelbaum; G. Spiteller; H. J. Dengler


Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
801 KB
Volume
4
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis


Following oral administration of DL-[14C]prenylamine, about 40% of the dose administered was excreted in urine within 10 days. Less than 0.1% of the dose was excreted as unchanged prenylamine. The drug was extensively metabolized to at least 20 to 25 metabolites. The structure of 12 metabolites could be elucidated by means of g.c.m.s. Ring hydroxylation and further methylation of the phenolic metabolites are the main metabolic pathways involved. A substantial part of the drug and/or its metabolites is metabolized via cleavage of the C--N--C bond, giving rise to amphetamine and diphenylpropylamine which are further metabolized by aromatic and sidechain hydroxylation.


πŸ“œ SIMILAR VOLUMES


The pharmacokinetics and metabolism of 1
✍ John E. Ray; Denis N. Wade πŸ“‚ Article πŸ“… 1982 πŸ› John Wiley and Sons 🌐 English βš– 510 KB

## Abstract Three healthy male subjects received single 100mg oral doses of carprofen containing 20 ΞΌCi of ^14^C‐carprofen. Venous blood samples were drawn during the first 48 h after the dose and urine and feces were collected for 120h. Concentrations of carprofen and its metabolites in body fluid

Synthesis of DL-[7-14C]indospicine and D
✍ Elzbieta Wieczorkowska; Mervyn P. Hegarty πŸ“‚ Article πŸ“… 1987 πŸ› John Wiley and Sons 🌐 French βš– 322 KB

A new method of synthesis of DL-[ 7-14C]indospicine and DL-2-amino-[ 7-1 4C]pimelic acid and their nonradioactive equivalents is reported. The combined radiochemical yield of both compounds, starting from potassium 1 14C]cyanide was 15.3%. Indospicine was isolated as the flavianate.

The metabolic fate of 14C-oxaprotiline Β·
✍ Dr. W. Dieterle; J. W. Faigle; W. KΓΌng; W. Theobald πŸ“‚ Article πŸ“… 1984 πŸ› John Wiley and Sons 🌐 English βš– 426 KB

The disposition of the enantiomers of oxaprotiline has been investigated after single 100 mg oral doses of racemic 14C-labelled oxaprotiline.HC1 in two healthy subjects. Absorption was complete. Peak blood concentrations of total I4C were 804 and 1010ngequiv.g-' after 4-6 h in the two subjects. Afte

Synthesis of DL-tyrosine-4-14C
✍ J. H. Kim; C. R. Creger; J. R. Couch πŸ“‚ Article πŸ“… 1969 πŸ› John Wiley and Sons 🌐 French βš– 391 KB

D L -t y r o ~i n e -4 -~~C has been synthesized with an overall yield 29.3 based on phenol-1-14C as the starting material. Anisole-l-14C was prepared by methylation of phenol-1-14C with dimethyl sulfate. The radioactive anisole was then converted to p-anisaldehyde-4-14C by a modijied Gattermann rea

Synthesis of [methyl-14C]crotonobetaine
✍ Heinz LΓΆster; Hermann Seim πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 French βš– 311 KB πŸ‘ 1 views

The causes of carnitine deficiency syndromes are not completely understood, but decomposition of L-carnitine in vivo is likely t o be involved. Carnitine is metabolized to y-butyrobetaine, and crotonobetaine is probably an intermediate in this pathway. To validate experimentally the precursor-produc