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Formula | C22H25FN4O2 |
Molar mass | 396.466 g·mol−1 |
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PX-2 (also known as 5F-APP-PINACA, FU-PX and PPA(N)-2201) is an indazole-based synthetic cannabinoid that has been sold online as a designer drug. [1] [2] [3] It contains a phenylalanine amino acid amide as part of its structure.
Sweden's public health agency suggested classifying PX-2 as hazardous substance on November 10, 2014. [4]
PX-2 is listed in the Fifth Schedule of the Misuse of Drugs Act (MDA) and therefore illegal in Singapore as of May 2015. [5]
As of October 2015 PX-2 is a controlled substance in China. [6]
APINACA (AKB48, N-(1-adamantyl)-1-pentyl-1H-indazole-3-carboxamide) is a drug that acts as a reasonably potent agonist for the cannabinoid receptors. It is a full agonist at CB1 with an EC50 of 142 nM and Ki of 3.24 nM (compared to the Ki of Δ9-THC at 28.35 nM and JWH-018 at 9.62 nM), while at CB2 it acts as a partial agonist with an EC50 of 141 nM and Ki of 1.68 nM (compared to the Ki of Δ9-THC at 37.82 nM and JWH-018 at 8.55 nM). Its pharmacological characterization has also been reported in a discontinued patent application. It had never previously been reported in the scientific or patent literature, and was first identified by laboratories in Japan in March 2012 as an ingredient in synthetic cannabis smoking blends, along with a related compound APICA. Structurally, it closely resembles cannabinoid compounds from a University of Connecticut patent, but with a simple pentyl chain on the indazole 1-position, and APINACA falls within the claims of this patent despite not being disclosed as an example.
APICA is an indole based drug that acts as a potent agonist for the cannabinoid receptors.
AB-FUBINACA is a psychoactive drug that acts as a potent agonist for the cannabinoid receptors, with Ki values of 0.9 nM at CB1 and 23.2 nM at CB2 and EC50 values of 1.8 nM at CB1 and 3.2 nM at CB2. It was originally developed by Pfizer in 2009 as an analgesic medication but was never pursued for human use. In 2012, it was discovered as an ingredient in synthetic cannabinoid blends in Japan, along with a related compound AB-PINACA, which had not previously been reported.
AB-PINACA is a compound that was first identified as a component of synthetic cannabis products in Japan in 2012.
ADBICA (also known as ADB-PICA) is a designer drug identified in synthetic cannabis blends in Japan in 2013. ADBICA had not previously been reported in the scientific literature prior to its sale as a component of synthetic cannabis blends. ADBICA features a carboxamide group at the 3-indole position, like SDB-001 and STS-135. The stereochemistry of the tert-butyl side-chain in the product is unresolved, though in a large series of indazole derivatives structurally similar to ADBICA that are disclosed in Pfizer patent WO 2009/106980, activity resides exclusively in the (S) enantiomers. ADBICA is a potent agonist of the CB1 receptor and CB2 receptor with an EC50 value of 0.69 nM and 1.8 nM respectively.
ADB-FUBINACA is a designer drug identified in synthetic cannabis blends in Japan in 2013. In 2018, it was the third-most common synthetic cannabinoid identified in drugs seized by the Drug Enforcement Administration.
AB-CHMINACA is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor (Ki = 0.78 nM) and CB2 receptor (Ki = 0.45 nM) and fully substitutes for Δ9-THC in rat discrimination studies, while being 16x more potent. Continuing the trend seen in other cannabinoids of this generation, such as AB-FUBINACA and AB-PINACA, it contains a valine amino acid amide residue as part of its structure, where older cannabinoids contained a naphthyl or adamantane residue.
ADB-PINACA is a cannabinoid designer drug that is an ingredient in some synthetic cannabis products. It is a potent agonist of the CB1 receptor and CB2 receptor with EC50 values of 0.52 nM and 0.88 nM respectively. Like MDMB-FUBINACA, this compound contains an amino acid residue of tert-leucine.
ADB-CHMINACA (also known as MAB-CHMINACA) is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor with a binding affinity of Ki = 0.289 nM and was originally developed by Pfizer in 2009 as an analgesic medication. It was identified in cannabinoid blends in Japan in early 2015.
5F-AMB (also known as 5F-MMB-PINACA and 5F-AMB-PINACA) is an indazole-based synthetic cannabinoid from the indazole-3-carboxamide family, which has been used as an active ingredient in synthetic cannabis products. It was first identified in Japan in early 2014. Although only very little pharmacological information about 5F-AMB itself exists, its 4-cyanobutyl analogue (instead of 5-fluoropentyl) has been reported to be a potent agonist for the CB1 receptor (KI = 0.7 nM).
PX-3 (also known as APP-CHMINACA) is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor with a binding affinity of Ki = 47.6 nM and was originally developed by Pfizer in 2009 as an analgesic medication.
5F-AB-PINACA is an indazole-based synthetic cannabinoid that is derived from a series of compounds originally developed by Pfizer in 2009 as an analgesic medication, and has been sold online as a designer drug.
5F-APINACA is an indazole-based synthetic cannabinoid that has been sold online as a designer drug. Structurally it closely resembles cannabinoid compounds from patent WO 2003/035005 but with a 5-fluoropentyl chain on the indazole 1-position, and 5F-APINACA falls within the claims of this patent, as despite not being disclosed as an example, it is very similar to the corresponding pentanenitrile and 4-chlorobutyl compounds which are claimed as examples 3 and 4.
MDMB-FUBINACA (also known as MDMB(N)-Bz-F and FUB-MDMB) is an indazole-based synthetic cannabinoid that is a potent agonist for the cannabinoid receptors, with Ki values of 1.14 nM at CB1 and 0.1228 nM at CB2 and EC50 values of 0.2668 nM at CB1 and 0.1411 nM at CB2, and has been sold online as a designer drug. Its benzyl analogue (instead of 4-fluorobenzyl) has been reported to be a potent agonist for the CB1 receptor (Ki = 0.14 nM, EC50 = 2.42 nM). The structure of MDMB-FUBINACA contains the amino acid 3-methylvaline or tert-leucine methyl ester.
PX-1 is an indole-based synthetic cannabinoid that has been sold online as a designer drug.
5F-ADB-PINACA is a cannabinoid designer drug that is an ingredient in some synthetic cannabis products. It is a potent agonist of the CB1 receptor and CB2 receptor with EC50 values of 0.24 nM and 2.1 nM respectively.
5F-ADBICA (also known as 5F-ADB-PICA) is an indole-based synthetic cannabinoid that is a potent agonist at CB1 receptors and CB2 receptors with EC50 values of 0.77 nM and 1.2 nM respectively.
AMB-CHMINACA or MMB-CHMINACA (also known as MA-CHMINACA) is an indazole-based synthetic cannabinoid that is a potent agonist of the CB1 receptor and has been sold online as a designer drug.
FUB-APINACA (also known as A-FUBINACA according to the EMCCDA framework for naming synthetic cannabinoids and FUB-AKB48) is an indazole-based synthetic cannabinoid that is presumed to be a potent agonist of the CB1 receptor and has been sold online as a designer drug. It is an analog of APINACA and 5F-APINACA where the pentyl chain has been replaced with fluorobenzyl.
Adamantyl-THPINACA is an indazole-based synthetic cannabinoid, which was first reported to Europol in Slovenia in January 2015. It is known as both the 1-adamantyl and 2-adamantyl isomers, which can be distinguished by GC-EI-MS. It is banned in Sweden and Russia. Both the 1-adamantyl and 2-adamantyl isomers are specifically listed as illegal drugs in Japan. Given the known metabolic liberation of amantadine in the related compound APINACA, it is suspected that metabolic hydrolysis of the amide group of Adamantyl-THPINACA may also release amantadine.