dc.contributor.author |
Bîlici, Ecaterina |
|
dc.contributor.author |
Uncu, Andrei |
|
dc.date.accessioned |
2021-04-12T13:14:55Z |
|
dc.date.available |
2021-04-12T13:14:55Z |
|
dc.date.issued |
2017 |
|
dc.identifier.citation |
BÎLICI, Ecaterina, UNCU, Andrei. Identificarea prin reacţii chimice a propiltodiazolochinazolin-onei la etapa de preformulare a capsulelor operculate = The identification of propyltiodiazolochinazolin-one by chemical reactions at the preformulation stage of the operculate capsules. In: Revista Farmaceutică a Moldovei. 2017, nr. 1-2, p. 31. ISSN 1812-5077. |
en_US |
dc.identifier.issn |
1812-5077 |
|
dc.identifier.uri |
http://repository.usmf.md/handle/20.500.12710/16645 |
|
dc.description |
Universitatea de Stat de Medicină şi Farmacie „Nicolae Testemiţanu” din Republica Moldova |
en_US |
dc.description.abstract |
Introducere. Identificarea substanţelor medicamentoase
prin reacţii chimice este o cerinţă indispensabilă în cercetarea
farmaceutică. Acestea trebuie să fie cât mai specifice şi
sensibile substanţei studiate, în rezultatul căreia obligatoriu
necesită să se obţină un efect analitic.
Propiltiodiazolochinazolin-ona (MF-1) este un derivat de
1,3,4-tiadiazol ce conţine în structura sa doi atomi de azot
terţiari. Conform proprietăţilor fizice, fizico-chimice şi a
structurii chimice, substanţa poate fi identificată cu ajutorul
reactiviilor de precipitare a alcaloizilor.
Scopul studiului. Este de a identifica substanţa activă la
etapa de preformulare.
Material şi metode. Substanţa activă
propiltiodiazolochinazolin-ona şi excipienţi: lactoză
monohidrat, lactoză anhidră, stearat de magneziu, celuloză
microcristalină, polivinilpirolidonă. Solvent: cloroform.
Reactivi de precipitare a alcaloizilor preparaţi în conformitate
cu cerinţele Farmacopeei Europene: acid picric (I), reactivul
Mayer (II), acidul fosfomolibdenic (III), acidul
fosforovolframic (IV), ustensile de laborator.
Rezultate. Au fost efectuate reacţii chimice de
identificare cu reactivi de precipitare a alcaloizilor a patru
formulări de capsule cu excipienţi diferiţi. Au fost obţinute
extracţii cloroformice ale formulărilor şi soluţia standard
cloroformică de MF-1. Toate soluţiile cloroformice analizate
au manifestat efecte analitice similare: I -coloraţie galbenă, II
- precipitat alb, III - precipitat oranj-cărămiziu, IV - coloraţie
galbenă. Aceste rezultate ne indică faptul că excipienţii
utilizaţi la elaborarea amestecurilor pentru încapsulare nu
influenţează asupra efectului analitic al reacţiilor de
identificare a substanţei active.
Concluzii. Conform datelor obţinute în urma identificării
substanţei cercetate prin reacţi chimice la etapa de
preformulare, s-a stabilit că toate formulările dau rezultate
pozitive cu reactivii de precipitarea a alcaloizilor. |
en_US |
dc.description.abstract |
Introduction. The identification of active substances by
chemical reactions is an essential requirement in
pharmaceutical research. The chemical reactions should be
the most specific and the most sensitive one for the
investigated substance and as a result it must obtain an
analytical effect. Propylthiodiazolochinazolin-one (MF-1) is
a derivative of 1,3,4-thiadiazol that contains in its structure
two atoms of tertiary amine. The substance can be identified
with the alkaloidal reagents due to its chemical structure,
physical and physico-chemical properties.
The aim of the study. Is to identify the active substance
at the preformulation stage.
Material and methods. The active substance:
propylthiodiazolochinazolin-one and the excipients: lactose
monohydrate, anhydrous lactose, magnesium stearate,
polyvinylpyrrolidone, microcrystalline cellulose. The solvent:
chloroform. Alkaloidal reagents were prepared in accordance
with the requirements of the European Pharmacopoeia: picric
acid (I), Mayer reagent (II), phosphomolybdic acid (III),
phosphorowolphramic acid (IV). Laboratory equipment.
Results. It was performed the chemical reactions with
alkaloidals reagents of the four formulations of capsules with
different excipients. It was obtained the chloroformic
extractions of the formulations and chloroformic standard
solution of MF-1. All analyzed chloroformic solutions
showed similar analytical effects: I - yellow coloration, II -
white precipitate, HI - orange-scarlet precipitate, IV - yellow
coloration.The results denote that the excipients used in the
preparation of mixtures for encapsulation have no influence
on identifying the active substance.
Conclusions. It was established that all the formulations
have positive results with the alkaloidal reagents, according
to the obtained data after identification of the investigated
substance at the preformulation stage of the operculate
capsules. |
en_US |
dc.publisher |
Asociația Farmaciștilor din Republica Moldova |
en_US |
dc.relation.ispartof |
Revista Farmaceutică a Moldovei: The First Congress of Pharmaceutical Students Association from Republic of Moldova dedicated to the Year Nicolae Testemitanu "Innovation and creativity in pharmaceutical practice and research”, May 4-7, 2017, Chisinau, Republic of Moldova |
en_US |
dc.subject |
1,3,4-thiadiazol |
en_US |
dc.subject |
capsules |
en_US |
dc.subject |
alkaloidal reagents |
en_US |
dc.subject |
propylthiodiazolochinazolin-one |
en_US |
dc.title |
Identificarea prin reacţii chimice a propiltodiazolochinazolin-onei la etapa de preformulare a capsulelor operculate |
en_US |
dc.title.alternative |
The identification of propyltiodiazolochinazolin-one by chemical reactions at the preformulation stage of the operculate capsules |
en_US |
dc.type |
Article |
en_US |