Levopropoxyphene

Levopropoxyphene
IUPAC name (1R,2S)-1-benzyl-3-(dimethylamino)-2-methyl-1-phenylpropyl propionate
Other names [(2R,3S)-4-dimethylamino-3-methyl-1,2-diphenyl-butan-2-yl]propanoate
Identifiers
CAS number	2338-37-6 N
PubChem	200742
ChemSpider	173777 Y
ChEMBL	CHEMBL1213351 N
Jmol-3D images	Image 1
SMILES O=C(O[C@](c1ccccc1)(Cc2ccccc2)[C@@H](C)CN(C)C)CC
InChI InChI=1S/C22H29NO2/c1-5-21(24)25-22(18(2)17-23(3)4,20-14-10-7-11-15-20)16-19-12-8-6-9-13-19/h6-15,18H,5,16-17H2,1-4H3/t18-,22+/m0/s1 Y Key: XLMALTXPSGQGBX-PGRDOPGGSA-N Y InChI=1/C22H29NO2/c1-5-21(24)25-22(18(2)17-23(3)4,20-14-10-7-11-15-20)16-19-12-8-6-9-13-19/h6-15,18H,5,16-17H2,1-4H3/t18-,22+/m0/s1 Key: XLMALTXPSGQGBX-PGRDOPGGBE
Properties
Molecular formula	C22H29NO2
Molar mass	339.47 g mol−1
N (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Levopropoxyphene is an antitussive. It is an optical isomer of dextropropoxyphene. The racemic mixture is called propoxyphene. Only the dextro-isomer (dextropropoxyphene) has an analgesic effect; the levo-isomer appears to exert only an antitussive effect. It was formerly marketed in the U.S. by Eli Lilly under the tradename Novrad as an antitussive.