54548-00-4

Upstream product

• 117142-10-6 desoxydemethylenechicanine 
• 77-78-1 dimethyl sulfate 
• 1360455-12-4 C₂₁H₂₆O₅ 
• 101205-05-4 C₂₂H₂₈O₅ 
• 1373333-26-6 (R)-4-benzyl-3-(3-(3,4-dimethoxyphenyl)propanoyl)-oxazolidin-2-one 
• 25253-30-9 β-conidendrin dimethyl ether 
• 24150-24-1 terameprocol 
• 91-16-7 1,2-dimethoxybenzene 
• 4773-01-7 (3S*,4R*)-3-(3,4-dimethoxybenzyl)-4-(3,4-dimethoxybenzyl)-4,5-dihydro-2(3H)-furanone 

Downstream Products

• 1255789-15-1 (7'R,8S,8'S)-8,8'-dimethyl-3',4,4',5-tetramethoxy-2,7'-cyclolignan-8-ol 
• 6399-14-0 4α-(3,4-dimethoxyphenyl)-2α,3β-dimethyl-6,7-dimethoxy-1-tetralone 

Relevant academic research and scientific papers

Efficient Total Synthesis of (±)-Isoguaiacin and (±)-Isogalbulin

1-Arylnaphthalene lignans such as (-)-isoguaiacin and (-)-isogalbulin have been reported to exhibit notable biological properties. While (-)-isoguaiacin has not been previously synthesized, syntheses of (-)-isogalbulin are generally long and produce a mixture of stereoisomers. We herein present the efficient total synthesis of (±)-isoguaiacin and (±)-isogalbulin in seven and eight steps with an overall yield of 46% and 36%, respectively. The reported approach harnesses a hydrogenolysis reaction in acidic conditions, to convert a furan into an arylnaphthalen structure.

Total synthesis of (+)-galbulin and unnatural lignans

The total synthesis of (+)-galbulin was achieved in 15% yield and 99% ee over eight steps from commercially available 4-veratraldehyde. The key steps include Meyer's asymmetric tandem addition to a chiral 2-oxazoline-substituted naphthalene, a Pd-catalyzed stereospecific decarboxylative γ-arylation, and a formal anti-Markovnikov hydromethylation. In addition, five unnatural lignans were synthesized using the same synthetic strategy.

A practical total synthesis of (+)-isogalbulin and (+)-galbulin

A practical total synthesis of the natural products (+)-isogalbulin and (+)-galbulin has been achieved in 10 steps from readily available 3-(3,4-dimethoxyphenyl)propanoic acid. The total yields were 12.3% and 12.9%, respectively. The key steps involved Ev

Collective synthesis of several 2,7′-cyclolignans and their correlation by chemical transformations

Collective synthesis of anti-malarial 2,7′-cyclolignans has been stereoselectively achieved employing (±)-cyclogalgravin (2) as a linchpin through a series of functional group conversions, including redox reactions. Interestingly, 2 can be correlated with

Enantioselective total synthesis of (+)-galbulin via organocatalytic domino Michael-Michael-aldol condensation

A concise and practical enantioselective synthesis of (+)-galbulin has been achieved using organocatalytic domino Michael-Michael-aldol condensation and organocatalytic kinetic resolution as the key steps. The Royal Society of Chemistry 2012.

Microbial transformations of aryltetralone and aryltetralin lignans by Cunninghamella echinulata and Beauveria bassiana

Microbiological transformation of the aryltetralone lignan (-)-8′-epi-aristoligone (1) with Cunninghamella echinulata ATCC 10028B afforded two known natural lignans, (-)-holostyligone (3) and (-)-arisantetralone (4). Incubation of the aryltetralin lignan

Acid-catalyzed cyclization of 2,3-dibenzylidenesuccinates: Synthesis of lignans (±)-cagayanin and (±)-galbulin

Acid-catalyzed cyclizations of E,E-dibenzylidenesuccinate esters have been developed as an efficient synthetic route to 1-aryl-1,2-dihydronaphthalenes. This reaction has been used in the synthesis of the naturally occurring lignans (±)-cagayanin and (±)-galbulin.

Ruthenium dioxide in fluoro acid medium V. Application to the non phenolic oxidative coupling of diarylbutanes. Conformational studies of cis and trans deoxyschizandrins

Ruthenium (IV) dioxide dihydrate in fluoro acidic medium was found to be a very efficient agent for the non phenolic oxidative coupling of diarylbutanes. We observed along with the expected aryl-aryl coupling, an unusual aryl-benzyl coupling, leading to a known class of lignans, the aryltetralins. Conformational studies of resultant cis and trans deoxyschizandrins were performed using high resolution NMR and molecular models.

THREE NEW LIGNANS FROM THE NUTMEG OF MYRISTICA CAGAYANESIS

The following constituents were isolated from the nutmeg of Myristica cagayanesis Merr.: trimyristin (1), otobain (2a), malabaricone A (3), otobanone (2b), cagayanin (4a), and cagayanone (4b).Compounds 2b, 4a and 4b are new lignans, and their structures were determined from spectral and chemical evidence.Keywords Myristica cagayanesis; nutmeg; lignan; otobanone; cagayanin; cagayanone