MLD-41

MLD-41
Clinical data
Other names	MLD-41; N1-Methyl-Lysergic Acid Diethylamide; 1-Methyl-LSD; 1-Methyl-N,N-Diethyllysergamide
Routes of; administration	Oral
Drug class	Serotonergic psychedelic; Hallucinogen
Pharmacokinetic data
Metabolism	Hepatic
Excretion	Renal
Identifiers
	IUPAC name (8β)-N,N-Diethyl-1,6-dimethyl-9,10-didehydroergoline-8-carboxamide;
CAS Number	4238-85-1 ;
PubChem CID	165200;
ChemSpider	144824 ;
CompTox Dashboard (EPA)	DTXSID00895034 ;
Chemical and physical data
Formula	C21H27N3O
Molar mass	337.467 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES O=C(N(CC)CC)[C@@H]3/C=C2/c4cccc1c4c(cn1C)C[C@H]2N(C3)C;
	InChI InChI=1S/C21H27N3O/c1-5-24(6-2)21(25)15-10-17-16-8-7-9-18-20(16)14(12-22(18)3)11-19(17)23(4)13-15/h7-10,12,15,19H,5-6,11,13H2,1-4H3/t15-,19-/m1/s1 ; Key:VQZYKSWQIQANKB-DNVCBOLYSA-N ;
	(verify)

MLD-41, also known as 1-methyl-LSD, is a derivative of LSD that has about one-third the psychoactive effects. It has been studied in cross-tolerance of LSD.^[1]^[2]^[3]

Metabolism of other 1-methylated ergoloids to their secondary amine derivatives has been frequently noted in mammals.^[4]

References

^ Jacob P, Shulgin AT (1994). "Structure-activity relationships of the classic hallucinogens and their analogs" (PDF). NIDA Res Monogr. 146: 74–91. PMID 8742795.
^ Hoffer A (1965). "D-Lysergic acid diethylamide (LSD): A review of its present status". Clin Pharmacol Ther. 6: 183–255. doi:10.1002/cpt196562183. PMID 14288188.
^ Abramson HA, Rolo A, Sklarofsky B, Stache J (January 1960). "Production of cross-tolerance to psychosis-producing doses of lysergic acid diethylamide and psilocybin". The Journal of Psychology. 49 (1): 151–4. doi:10.1080/00223980.1960.9916396.
^ Müller-Schweinitzer E, Tapparelli C (March 1986). "Methylergometrine, an active metabolite of methysergide". Cephalalgia: An International Journal of Headache. 6 (1): 35–41. doi:10.1046/j.1468-2982.1986.0601035.x. PMID 3698092. S2CID 5778173.

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[JacobShulgin1994-1] Jacob P, Shulgin AT (1994). "Structure-activity relationships of the classic hallucinogens and their analogs" (PDF). NIDA Res Monogr. 146: 74–91. PMID 8742795.

[Hoffer1965-2] Hoffer A (1965). "D-Lysergic acid diethylamide (LSD): A review of its present status". Clin Pharmacol Ther. 6: 183–255. doi:10.1002/cpt196562183. PMID 14288188.

[3] Abramson HA, Rolo A, Sklarofsky B, Stache J (January 1960). "Production of cross-tolerance to psychosis-producing doses of lysergic acid diethylamide and psilocybin". The Journal of Psychology. 49 (1): 151–4. doi:10.1080/00223980.1960.9916396.

[pmid3698092-4] Müller-Schweinitzer E, Tapparelli C (March 1986). "Methylergometrine, an active metabolite of methysergide". Cephalalgia: An International Journal of Headache. 6 (1): 35–41. doi:10.1046/j.1468-2982.1986.0601035.x. PMID 3698092. S2CID 5778173.

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