- ring in
their chemical structure. This
includes penicillin derivatives (
penams),
cephalosporins and
cephamycins (cephems), monobactams,
carbapenems and...
- amides.
Penams are
strained due to the
angle strain on the four-member β-lactam ring,
whose internal bond
angles are 90º. Consequently,
penams are susceptible...
- Beta-lactam (β-lactam)
antibiotics are a broad-spectrum
group that
include some
penams (penicillin
derivatives such as
methicillin and oxacillin) and
cephems such...
- 2004). "Beta-lactams in the new millennium. Part-II: cephems, oxacephems,
penams and sulbactam". Mini
Reviews in
Medicinal Chemistry. 4 (1): 93–109. doi:10...
- The β-lactam core structures. (A) A
penam. (B) A carbapenam. (C) An oxapenam. (D) A penem. (E) A carbapenem. (F) A monobactam. (G) A cephem. (H) A carbacephem...
-
condition is
known as
livedoid dermatitis or
Nicolau syndrome. The term "
penam" is used to
describe the
common core
skeleton of a
member of the penicillins...
- 2004). "Beta-lactams in the new millennium. Part-II: cephems, oxacephems,
penams and sulbactam". Mini
Reviews in
Medicinal Chemistry. 4 (1): 93–109. doi:10...
-
between 0.05 and 0.10 angstroms (Å).
Cephems have h
values in of 0.20–0.25 Å.
Penams have
values in the
range 0.40–0.50 Å,
while carbapenems and
clavams have...
- cell wall synthesis: the beta-lactam
antibiotics (penicillin
derivatives (
penams),
cephalosporins (cephems), monobactams, and carbapenems) and vancomycin...
-
antibiotic and 5S
clavams may have anti-fungal properties. They are
similar to
penams, but with an
oxygen substituted for the sulfur. Thus, they are also known...
