10 g of any lysergic acid amide from various natural sources dissolved in 200 ml of methanolic KOH solution and the methanol removed immediately in vacuo. The residue is treated with 200 ml of an 8% aqueous solution of KOH and the mixture heated on a steam bath for one hour. A stream of nitrogen gas is passed through the flask during heating and the evolved NH3 gas may be titrated is HCl to follow the reaction. The alkaline solution is made neutral to congo red with tartaric acid, filtered, cleaned by extraction with ether, the aqueous solution filtered and evaporated. Digest the MeOH to remove some of the coloured material from the crystals of lysergic acid.

Arrange the lighting in the lab similarly to that of a dark room. Use photographic red and yellow safety lights, as lysergic acid derivatives are decomposed when light is present. Rubber gloves must be worn due to the highly poisonous nature of ergot alkaloids. A hair drier, or, better, a flash evaporator, is necessary to speed up steps where evaporation is necessary.

2. Syntéza LSD isomerů z kyseliny lysergové

Step I. Use Yellow light
5.36 g of d-lysergic acid are suspended in 125 ml of acetonitrile and the suspension cooled to about -20 C in a bath of acetone cooled with dry ice. To the suspension is added a cold (-20 C) solution of 8.82 g of trifluoroacetic anhydride in 75 ml of acetonitrile. The mixture is allowed to stand at -20 C for about 1.5 hours during which the suspended material dissolves, and the d-lysergic acid is converted to the mixed anhydride of lysergic and trifluoroacetic acids. The mixed anhydride can be separated in the form of an oil by evaporating the solvent in vacuo at a temperature below 0 C, but this is not necessary. Everything must be kept anhydrous.

Step II. Use Yellow light
The solution of mixed anhydrides in acetonitrile from Step I is added to 150 ml of a second solution of acetonitrile containing 7.6 g of diethylamine. The mixture is held in the dark at room temperature for about 2 hours. The acetonitrile is evaporated in vacuo, leaving a residue of LSD-25 plus other impurities. The residue is dissolved in 150 ml of chloroform and 20 ml of ice water. The chloroform layer is removed and the aqueous layer is extracted with several portions of chloroform. The chloroform portions are combined and in turn washed with four 50 ml portions of ice-cold water. The chloroform solution is then dried over anhydrous Na2SO4 and evaporated in vacuo.

Vzniklo LSD s příměsí isomerů, způsobujících bolesti hlavy, nevolnost a další nežádoucí efekty. Psychoaktivní je pouze d-stereoizomer. Nutno provést purifikaci podle bodu 3.

3. Oddělení čistého LSD od isomerů

Step I. Use darkroom and follow with a long wave UV
The material is dissolved in a 3:1 mixture of benzene and chloroform. Pack the chromatography column with a slurry of basic alumina in benzene so that a 1 inch column is six inches long. Drain the solvent to the top of the alumina column and carefully add an aliquot of the LSD-solvent solution containing 50 ml of solvent and 1 g LSD. Run this through the column, following the fastest moving fluorescent band. After it has been collected, strip the remaining material from the column by washing with MeOH. Use the UV light sparingly to prevent excessive damage to the compounds. Evaporate the second fraction in vacuo and set aside for Step II. The fraction containing the pure LSD is concentrated in vacuo and the syrup will crystallise slowly. This material may be converted to the tartrate by tartaric acid and the LSD tartrate conveniently crystallised. MP 190-196 C.

Step II. Use Red light
Dissolve the residue derived from the methanol stripping of the column in a minimum amount of alcohol. Add twice that volume of 4 N alcoholic KOH solution and allow the mixture to stand at room temperature for several hours. Neutralise with dilute HCl, make slightly basic with NH4OH and extract with chloroform as in #2. Evaporate in vacuo and chromatograph as in the previous step.

Note: Lysergic acid compounds are unstable to heat, light and oxygen. In any form it helps to add ascorbic acid as an anti- oxidant, keeping the container tightly closed, light-tight with aluminum foil, and in a refrigerator.

N-acetyl-LSD : známé jako ALD-52, horší než LSD, zhruba 90% účinnost, mírné potlačení nervové aktivity, klidnější, méně intenzivní průběh, někdy je na tripech místo LSD

N-methyl-LSD : lepší než klasické LSD, dokonalejší působení na nervovou soustavu

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