Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
420.191268713
InChI
InChI=1S/C24H30O5.Na/c1-3-4-7-15(2)19(25)13-12-17-20(26)14-21-23(17)18-10-5-8-16(24(18)29-21)9-6-11-22(27)28;/h5,8,10,12-13,15,17,19-21,23,25-26H,6-7,9,11,14H2,1-2H3,(H,27,28);/q;+1/p-1/b13-12+;/t15?,17-,19+,20+,21-,23-;/m0./s1
InChI Key
InChIKey=YTCZZXIRLARSET-VJRSQJMHSA-M
IUPAC Name
sodium 4-[(2S,3R,4R,6S)-4-hydroxy-3-[(1E,3S)-3-hydroxy-4-methyloct-1-en-6-yn-1-yl]-7-oxatricyclo[6.4.0.0^{2,6}]dodeca-1(8),9,11-trien-9-yl]butanoate
Traditional IUPAC Name
sodium 4-[(2S,3R,4R,6S)-4-hydroxy-3-[(1E,3S)-3-hydroxy-4-methyloct-1-en-6-yn-1-yl]-7-oxatricyclo[6.4.0.0^{2,6}]dodeca-1(8),9,11-trien-9-yl]butanoate
SMILES
[Na+].[H][C@]12C[C@@H](O)[C@H](\C=C\[C@@H](O)C(C)CC#CC)[C@@]1([H])C1=CC=CC(CCCC([O-])=O)=C1O2
pKa (strongest acidic)
4.2
pKa (Strongest Basic)
-1.4
Refractivity
123.56 m3·mol-1
Dược Lực Học :
Beraprost is a stable, orally active prostacyclin analogue with vasodilatory, antiplatelet and cytoprotective effects. Beraprost is generally well tolerated and appears to be an effective agent in the treatment of patients with Buerger's disease and arteriosclerosis obliterans. Comparative data from a large randomised trial indicated that the drug appears as effective as ticlopidine in patients with these conditions. In patients with intermittent claudication, significant benefits of beraprost compared with placebo were reported in a randomised clinical trial; however, the use of beraprost in these patients is not supported by recent preliminary unpublished data from a large, phase III, placebo-controlled study. Limited data suggest some efficacy with long-term beraprost treatment of patients with PAH, where options are few and where oral administration of the drug could be a considerable advantage over intravenous prostacyclin (PGI2) therapy.
Cơ Chế Tác Dụng :
Beraprost is a synthetic analogue of prostacyclin, under clinical trials for the treatment of pulmonary hypertension. It is also being studied for use in avoiding reperfusion injury.
Beraprost acts by binding to prostacyclin membrane receptors ultimately inhibiting the release of Ca2+ from intracellular storage sites. This reduction in the influx of Ca2+ has been postulated to cause relaxation of the smooth muscle cells and vasodilation.
Dược Động Học :
▧ Absorption :
Oral bioavailability is 50–70%.
▧ Half Life :
35–40 minutes
Chỉ Định :
For the treatment of pulmonary hypertension.