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Predavanje 2 - www.farmacija.ac.me

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β-LAKTAM<br />

• LAKA HIDROLIZA, POD DEJSTVOM KISELINA ili BAZA,<br />

ZBOG ZNAČAJNE ENERGIJE NAPONA U OVOM MOLEKULU<br />

H ili OH - / H 2<br />

O<br />

O<br />

N<br />

b- laktamaze<br />

O<br />

HN<br />

OH<br />

hidroliza β-laktama<br />

*Hidroliza β-laktama - veliki problem penicilina i cefalosporina<br />

O<br />

H<br />

H<br />

H<br />

R<br />

C<br />

N<br />

S<br />

CH 3<br />

PENICILINI<br />

O<br />

d +<br />

N<br />

COOH<br />

CH 3<br />

H +<br />

O<br />

H<br />

d - +<br />

O<br />

HS<br />

CH 3<br />

CH 3<br />

C<br />

R<br />

C<br />

N<br />

CH<br />

COOH<br />

C<br />

H<br />

H<br />

C<br />

COOH<br />

NH 2<br />

ACILPENALDINSKA KISELINA<br />

PENICILAMIN<br />

29

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