Azithromycin hemiethanolate monohydrateProduct ingredient for Azithromycin

Name
Azithromycin hemiethanolate monohydrate
Drug Entry
Azithromycin

Azithromycin is a broad-spectrum macrolide antibiotic with a long half-life and a high degree of tissue penetration 3. It was initially approved by the FDA in 1991 4.

It is primarily used for the treatment of respiratory, enteric and genitourinary infections and may be used instead of other macrolides for some sexually transmitted and enteric infections. It is structurally related to erythromycin 2.

Azithromycin [9-deoxo-9a-aza-9a-methyl-9a-homoerythromycin] is a part of the azalide subclass of macrolides, and contains a 15-membered ring, with a methyl-substituted nitrogen instead of a carbonyl group at the 9a position on the aglycone ring, which allows for the prevention of its metabolism. This differentiates azithromycin from other types of macrolides 4.

In March 2020, a small study was funded by the French government to investigate the treatment of COVID-19 with a combination of azithromycin and the anti-malaria drug hydroxychloroquine. The results were positive, all patients taking the combination were virologically cured within 6 days of treatment, however, larger studies are required.9

Accession Number
DBSALT003207
Structure
Synonyms
Azithromycin monohydrate hemiethanolate
UNII
S548K9P0TK
CAS Number
554432-19-8
Weight
Average: 1580.091
Monoisotopic: 1579.080045715
Chemical Formula
C78H154N4O27
InChI Key
FEWUYCASOAUDHD-LCPFZDPDSA-N
InChI
InChI=1S/2C38H72N2O12.C2H6O.2H2O/c2*1-15-27-38(10,46)31(42)24(6)40(13)19-20(2)17-36(8,45)33(52-35-29(41)26(39(11)12)16-21(3)48-35)22(4)30(23(5)34(44)50-27)51-28-18-37(9,47-14)32(43)25(7)49-28;1-2-3;;/h2*20-33,35,41-43,45-46H,15-19H2,1-14H3;3H,2H2,1H3;2*1H2/t2*20-,21-,22+,23-,24-,25+,26+,27-,28+,29-,30+,31-,32+,33-,35+,36-,37-,38-;;;/m11.../s1
IUPAC Name
bis((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-{[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy}-2-ethyl-3,4,10-trihydroxy-13-{[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy}-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one) ethanol dihydrate
SMILES
O.O.CCO.[H][C@@]1(C[C@@](C)(OC)[C@@H](O)[C@H](C)O1)O[C@H]1[C@H](C)[C@@H](O[C@]2([H])O[C@H](C)C[C@@H]([C@H]2O)N(C)C)[C@](C)(O)C[C@@H](C)CN(C)[C@H](C)[C@@H](O)[C@](C)(O)[C@@H](CC)OC(=O)[C@@H]1C.[H][C@@]1(C[C@@](C)(OC)[C@@H](O)[C@H](C)O1)O[C@H]1[C@H](C)[C@@H](O[C@]2([H])O[C@H](C)C[C@@H]([C@H]2O)N(C)C)[C@](C)(O)C[C@@H](C)CN(C)[C@H](C)[C@@H](O)[C@](C)(O)[C@@H](CC)OC(=O)[C@@H]1C
ChemSpider
34993910
Predicted Properties
PropertyValueSource
Water Solubility0.514 mg/mLALOGPS
logP3.03ALOGPS
logP2.44Chemaxon
logS-3.2ALOGPS
pKa (Strongest Acidic)12.43Chemaxon
pKa (Strongest Basic)9.57Chemaxon
Physiological Charge2Chemaxon
Hydrogen Acceptor Count13Chemaxon
Hydrogen Donor Count5Chemaxon
Polar Surface Area180.08 Å2Chemaxon
Rotatable Bond Count14Chemaxon
Refractivity194.11 m3·mol-1Chemaxon
Polarizability82.84 Å3Chemaxon
Number of Rings6Chemaxon
Bioavailability0Chemaxon
Rule of FiveNoChemaxon
Ghose FilterNoChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleYesChemaxon