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Chemical compound
Pharmaceutical compound
Tetrahydroharmine Other names THH; 1,2,3,4-Tetrahydroharmine; Leptaflorine; 2,3,4,9-Tetrahydro-7-methoxy-1-methyl-1H-pyrido(3,4-b)indole Legal status
AU : S9 (Prohibited substance)
7-methoxy-1-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole
CAS Number PubChem CID ChemSpider UNII KEGG ChEBI ChEMBL CompTox Dashboard (EPA ) Formula C 13 H 16 N 2 O Molar mass 216.284 g·mol−1 3D model (JSmol )
CC1C2=C(CCN1)C3=C(N2)C=C(C=C3)OC
InChI=1S/C13H16N2O/c1-8-13-11(5-6-14-8)10-4-3-9(16-2)7-12(10)15-13/h3-4,7-8,14-15H,5-6H2,1-2H3
Key:ZXLDQJLIBNPEFJ-UHFFFAOYSA-N
Tetrahydroharmine (THH ) is a fluorescent indole alkaloid that occurs in the tropical liana species Banisteriopsis caapi .[ 1]
THH, like other harmala alkaloids in B. caapi , namely harmaline and harmine , is a reversible inhibitor of monoamine oxidase A (RIMA),[ 2] but it also inhibits the reuptake of serotonin .[ 3]
THH contributes to B. caapi' s psychoactivity as a serotonin reuptake inhibitor .[ 4]
Harmala alkaloids are considered Schedule 9 prohibited substances under the Poisons Standard (October 2015).[ 5] A Schedule 9 substance is a substance which may be abused or misused, the manufacture, possession, sale or use of which should be prohibited by law except when required for medical or scientific research, or for analytical, teaching or training purposes with approval of Commonwealth and/or State or Territory Health Authorities.[ 5]
^ Callaway JC (June 2005). "Various alkaloid profiles in decoctions of Banisteriopsis caapi". Journal of Psychoactive Drugs . 37 (2): 151– 155. doi :10.1080/02791072.2005.10399796 . PMID 16149328 . S2CID 1420203 .
^ Buckholtz NS, Boggan WO (November 1977). "Monoamine oxidase inhibition in brain and liver produced by beta-carbolines: structure-activity relationships and substrate specificity". Biochemical Pharmacology . 26 (21). Elsevier BV: 1991– 1996. doi :10.1016/0006-2952(77)90007-7 . PMID 921812 .
^ Morales-García JA, de la Fuente Revenga M, Alonso-Gil S, Rodríguez-Franco MI, Feilding A, Perez-Castillo A, Riba J (July 2017). "The alkaloids of Banisteriopsis caapi, the plant source of the Amazonian hallucinogen Ayahuasca, stimulate adult neurogenesis in vitro" . Scientific Reports . 7 (1). Springer Science and Business Media LLC: 5309. Bibcode :2017NatSR...7.5309M . doi :10.1038/s41598-017-05407-9 . PMC 5509699 . PMID 28706205 .
^ Callaway JC, McKenna DJ , Grob CS, Brito GS, Raymon LP, Poland RE, et al. (June 1999). "Pharmacokinetics of Hoasca alkaloids in healthy humans". Journal of Ethnopharmacology . 65 (3): 243– 256. doi :10.1016/S0378-8741(98)00168-8 . PMID 10404423 .
^ a b "Poisons Standard October 2015" . Australian Government Department of Health. September 2015.
Tryptamines 4-Hydroxytryptamines and esters /ethers 5-Hydroxy- and5-methoxytryptamines
2-Methyl-5-HT
4-HO-5-MeO-T
4-F-5-MeO-DMT
4,5-DHP-DMT
4,5-DHT
4,5-MDO-DMT
4,5-MDO-DiPT
5-BT
5-Ethoxy-DMT
5-HO-DiPT
5-HO-NiPT
5-HTP (oxitriptan )
5-MeO-2-TMT
5-MeO-34MPEMT
5-MeO-7,N ,N -TMT
5-MeO-DALT
5-MeO-DBT
5-MeO-DET
5-MeO-DiPT
5-MeO-DMT (N ,N ,O -TMS; O -methylbufotenine)
5-MeO-DPT
5-MeO-EiPT
5-MeO-EPT
5-MeO-MALT
5-MeO-MET
5-MeO-MiPT
5-MeO-NET
5-MeO-NiPT
5-MeO-NMT (O ,N -DMS)
5-MeO-PiPT
5-MeO-NBpBrT
5-MeO-T (5-MT; mexamine; O -methylserotonin)
5-MeO-T-NBOMe
5-MT-NB3OMe
5-NOT
5,6-DHT
5,6-MDO-DiPT
5,6-MDO-DMT
5,6-MDO-MiPT
5,6-MeO-MiPT
5,7-DHT
Arachidonoyl serotonin
BAB
Benanserin (BAS; SQ-4788)
Bufotenidine (5-HTQ; N ,N ,N -TMS)
Bufotenin (5-HO-DMT; N ,N -DMS; mappine)
Bufoviridine (5-SO-DMT)
CP-132,484
Cqd 280
Cqd 285
Cqdd 280
EMDT (2-Et-5-MeO-DMT)
HIOC
Indorenate (TR-3369)
Isamide (N -CA-5-MT)
MS-245
N -DEAOP-5-MeO-NET
N -DEAOP-5-MeO-NMT
N -Feruloylserotonin (moschamine)
Norbufotenin (5-HO-NMT; NMS)
O -Acetylbufotenine (5-AcO-DMT)
O -Pivalylbufotenine (5-(t -BuCO)-DMT)
Psilomethoxin (4-HO-5-MeO-DMT)
Psilomethoxybin (4-PO-5-MeO-DMT)
Serotonin (5-HT)
N -Acetyltryptaminesα-Alkyltryptamines
5-Hydroxy- and 5-alkoxy-α-alkyltryptamines: 1-Pr-5-MeO-AMT
5-Allyloxy-AMT
5-Ethoxy-αMT
5-iPrO-αMT
5-MeO-αET
5-MeO-αMT (α,O -DMS; Alpha-O)
α-Methyl-5-HTP
α-Methylmelatonin
α-Methylserotonin (5-HO-αMT; α-Me-5-HT)
α,N ,O -TMS (5-MeO-α,N -DMT)
α,N ,N ,O -TeMS (5-MeO-α,N ,N -TMT)
AL-37350A (4,5-DHP-αMT)
BW-723C86
Triptans Cyclized tryptamines
Bufothionine
Ciclindole
Cyclic 3-OHM
Ergolines and lysergamides (e.g., LSD )
Flucindole
Frovatriptan
Harmala alkaloids and β-carbolines (e.g., 6-MeO-THH , 9-Me-BC , β-carboline (norharman) , harmaline , harmalol , harmane , harmine , pinoline , tetrahydroharmine , tryptoline )
Iboga alkaloids and related (e.g., DM-506 (ibogaminalog) , ibogaine , ibogamine , noribogaine , tabernanthalog , tabernanthine )
Imidazolylindoles (e.g., AGH-107 , AGH-192 , AH-494 )
LY-266,097
Metralindole
O -Methylnordehydrobufotenine
Partial ergolines and lysergamides (e.g., NDTDI , RU-27849 , RU-28251 , RU-28306 , LY-178210 , Bay R 1531 (LY-197206) , LY-293284 , 10,11-seco-LSD , 10,11-secoergoline (α,N -Pip-T) , CT-5252 )
PHA-57378
PNU-22394
PNU-181731
Piperidinylethylindoles (e.g., Pip-T , indolylethylfentanyl )
Pyrrolidinylethylindoles (e.g., Pyr-T , 4-HO-pyr-T , 5-MeO-pyr-T , 4-F-5-MeO-pyr-T )
Pyrrolidinylmethylindoles (e.g., MPMI , 4-HO-MPMI (lucigenol) , 5F-MPMI , 5-MeO-MPMI , CP-135807 , eletriptan )
Pertines (e.g., alpertine , milipertine , oxypertine , solypertine )
Tetrahydropyridinylindoles (e.g., RS134-49 , RU-28253 )
Yohimbans (e.g., yohimbine , rauwolscine , spegatrine , corynanthine , ajmalicine , reserpine , deserpidine , rescinnamine )
Isotryptamines Related compounds
2-Azapsilocin
4-Aza-5-MeO-DPT
5-Aza-4-MeO-DiPT
5-HIAA
5-HIAL
5-HITCA
5-MIAL
7-Aza-5-MeO-DiPT
Amedalin
Benzindopyrine
Benzofurans (e.g., 3-APB , 5-MeO-DiBF , BPAP , 3-F-BPAP , dimemebfe , mebfap )
Benzothiophenes (e.g., 3-APBT )
CP-94253
CT-4436
Daledalin
Gramine
Histamine
I-32
IAL
IN-399
Indazoles (e.g., AL-34662 , AL-38022A , VU6067416 , YM-348 )
Indenes (e.g., C-DMT )
Indolizines (e.g., TACT908 (2ZEDMA) , 1ZP2MA , 1Z2MAP1O )
Indolylaminopropanes (e.g., 1-API , 2-API , 4-API , 5-API (5-IT; PAL-571) , 6-API (6-IT) , 7-API )
Iprindole
Latrepirdine
Masupirdine
Medmain
Molindone
Non-tryptamine triptans (e.g., avitriptan , LY-334370 , naratriptan )
Phenethylamines (e.g., phenethylamine , amphetamine )
Piperidinylindoles (e.g., BRL-54443 , LY-334370 , naratriptan , sertindole , SN-22 )
Pirlindole
Pyridinylindoles (e.g., tepirindole )
Pyrrolylethylamines (e.g., 2-pyrrolylethylamine (NEA) , 3-pyrrolylethylamine (3-NEA) , 3-pyrrolylpropylamine )
Quinolinylethylamines (e.g., mefloquine )
(R )-69 (3IQ)
Ro60-0213
Selisistat
Tetrahydropyridinylindoles (e.g., EMD-386088 , LY-367265 , RU-24,969 )
Tetrindole
Tipindole
Zilpaterol (RU-42173)