AUTACOIDS Flashcards
dictates receptor activity profile in opioid analgesics
substituent of N
receptor activity when N substituent of an opioid analgesic is methyl or aralkyl
mu receptor agonist
receptor activity when N substituent of an opioid analgesic is a dimethylallyl or cyclobutylmethyl
mu/kapa receptor agonist
receptor activity when N substituent of an opioid analgesic is a cyclopropylmethyl or allyl
pure antagonist
essential for aspartic acid anchoring of opioid drug
N cation
effect of replacing H at C14 of opioid drug with beta-OH (oxy derivatives)
increase activity 2-3 times over H
what happens when the C7 and C8 of an opioid drug gets saturated
increase activity
in opioids, replacing 6 alpha-OH in 7,8-dihydro system with alpha 6-keto (hydro derivatives)
6x increased activity
dihydrofuran oxygen (removal of O in furan) in an opioid analgesic pharmacophore
increased polarity only
removal of furan ring (ring E) in opioid analgesic pharmacophore
more lipophilic = better at targeting of CNS receptors = increased activity
purpose of 3-phenol ring in opioid analgesics
essential for agonist/antagonist activity
what structure is targeted by prodrug design in an opioid analgesic
ether/ester form at the OH of 3-phenol ring structure
purpose of aromatic phenyl ring
agonist/antagonist activity
opioids with rings A,B,C,D,E
phenanthrene-type
opioids with rings A,B,C,B
morphinan-type
opioids with rings, A,B,D
benzomorphan-type
opioids with rings A,D
phenylpiperidine-type
diacetyl morphine
heroin
derivative of morphine with saturated C6-C7 bond and 6-keto
hydromorphone (hydro derivative)
derivative of morphine with saturated C6-C7 bond, 6-keto and OH substitution at C14
oxymorphone (oxy derivative)
has OCH substitution at the the 3-phenol
codeine
codeine with saturated C6-C7 and 6-keto
hydrocodone (hydro derivative)
codeine with saturated C6-C7, 6-keto and OH at C14
oxycodone (oxy derivative)
opioids which are known to cause cardiotoxicity with prolonged use
codeine and oxycodone