General Information
Drug ID
DR00638
Drug Name
Grepafloxacin
Synonyms
(+-)-1-Cyclopropyl-6-fluoro-1,4-dihydro-5-methyl-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid; 1-Cyclopropyl-6-fluoro-1,4-dihydro-5-methyl-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid; 1-cyclopropyl-6-fluoro-5-methyl-7-(3-methylpiperazin-1-yl)-4-oxoquinoline-3-carboxylic acid; Grepafloxacin (unspecified); Grepafloxacin [INN]; Raxar; Raxar (TN)
Drug Type
Small molecular drug
Indication Chronic bronchitis [ICD11: CA20.1] Approved [1]
Therapeutic Class
Antibiotics
Structure
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3D MOL 2D MOL
Formula
C19H22FN3O3
Canonical SMILES
CC1CN(CCN1)C2=C(C(=C3C(=C2)N(C=C(C3=O)C(=O)O)C4CC4)C)F
InChI
InChI=1S/C19H22FN3O3/c1-10-8-22(6-5-21-10)15-7-14-16(11(2)17(15)20)18(24)13(19(25)26)9-23(14)12-3-4-12/h7,9-10,12,21H,3-6,8H2,1-2H3,(H,25,26)
InChIKey
AIJTTZAVMXIJGM-UHFFFAOYSA-N
CAS Number
CAS 119914-60-2
Pharmaceutical Properties Molecular Weight 359.401 Topological Polar Surface Area 72.9
Heavy Atom Count 26 Rotatable Bond Count 3
Hydrogen Bond Donor Count 2 Hydrogen Bond Acceptor Count 7
XLogP
-0.2
PubChem CID
72474
PubChem SID
103179577 , 104011329 , 104353024 , 124766026 , 125536480 , 127411146 , 134338274 , 135029665 , 13542 , 137044453 , 143019201 , 14852426 , 160963712 , 162793470 , 163693542 , 163852853 , 179148061 , 184545887 , 184546334 , 223439875 , 224916848 , 226420671 , 241036011 , 242059760 , 43128629 , 46507253 , 50042505 , 50112780 , 50471882 , 53788063 , 57318735 , 603312 , 6610845 , 8195206
ChEBI ID
CHEBI:5543
TTD Drug ID
D0JL2K
DT(s) Transporting This Drug BCRP Transporter Info Breast cancer resistance protein Substrate [2]
MRP1 Transporter Info Multidrug resistance-associated protein 1 Substrate [3]
MRP2 Transporter Info Multidrug resistance-associated protein 2 Substrate [4]
OATP1A2 Transporter Info Organic anion transporting polypeptide 1A2 Substrate [5]
P-GP Transporter Info P-glycoprotein 1 Substrate [6]
Drug-Transporter Activity Data
Drug-Transporter Activity Data P-GP Transporter Info Km = 580 microM Human enterocyte-like 2 cells (Caco-2)-MDR1 [7]
References
1 Grepafloxacin was approved by FDA. The official website of the U.S. Food and Drug Administration. (2019)
2 Involvement of breast cancer resistance protein (ABCG2) in the biliary excretion mechanism of fluoroquinolones. Drug Metab Dispos. 2007 Oct;35(10):1873-9.
3 Limited distribution of new quinolone antibacterial agents into brain caused by multiple efflux transporters at the blood-brain barrier. J Pharmacol Exp Ther. 2000 Oct;295(1):146-52.
4 Fluoroquinolone efflux mediated by ABC transporters. J Pharm Sci. 2008 Sep;97(9):3483-93.
5 Identification of influx transporter for the quinolone antibacterial agent levofloxacin. Mol Pharm. 2007 Jan-Feb;4(1):85-94.
6 Mammalian drug efflux transporters of the ATP binding cassette (ABC) family in multidrug resistance: A review of the past decade. Cancer Lett. 2016 Jan 1;370(1):153-64.
7 Secretory mechanisms of grepafloxacin and levofloxacin in the human intestinal cell line caco-2. J Pharmacol Exp Ther. 2000 Oct;295(1):360-6.

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