55303-98-5

Basic information

• Product Name: avarol
• Synonyms: avarol;2-[[(1R)-1,2,3,4,4a,7,8,8aα-Octahydro-1,2β,4aβ,5-tetramethylnaphthalen-1-yl]methyl]-1,4-benzenediol;NSC 306951
• CAS NO: 55303-98-5
• Molecular Formula: C₂₁H₃₀O₂
• Molecular Weight: 314.466
• Mol File: 55303-98-5.mol

Chemical Properties

• Melting Point: 149-150℃ (chloroform )
• Boiling Point: 449.5°C at 760 mmHg
• Flash Point: 200°C
• Appearance: /
• Density: 1.055g/cm³
• Vapor Pressure: 1.07E-08mmHg at 25°C
• Refractive Index: 1.552
• CAS DataBase Reference: avarol(CAS DataBase Reference)
• NIST Chemistry Reference: avarol(55303-98-5)
• EPA Substance Registry System: avarol(55303-98-5)

Safety Data

• Hazardous Substances Data: 55303-98-5(Hazardous Substances Data)

Usage

Uses

Avarol is a cytostatic agent which has potent antileukemic activity.

InChI:InChI=1/C21H30O2/c1-14-6-5-7-19-20(14,3)11-10-15(2)21(19,4)13-16-12-17(22)8-9-18(16)23/h6,8-9,12,15,19,22-23H,5,7,10-11,13H2,1-4H3

Upstream product

• 252577-53-0 2-(Pyridin-2-ylsulfanyl)-3-((1R,2S,4aS,8aS)-1,2,4a,5-tetramethyl-1,2,3,4,4a,7,8,8a-octahydro-naphthalen-1-ylmethyl)-[1,4]benzoquinone 
• 184485-48-1 (1S,2S,4aS)-(-)-trans-1α-[(2,5-dimethoxyphenyl)methyl]-5-(2-methyl-1,3-dioxolan-2-yl)-octahydro-1β,2β,4aβ-trimethyl-5(6H)-naphthalenone 
• 61950-54-7 (8aS)-1,1-(1,2-ethylenedioxy)-1,2,3,4,6,7,8,8a-octahydro-8a-methyl-6-oxonaphthalene 
• 184485-46-9 (1S,4aS)-(+)-trans-1α-[(2,5-dimethoxyphenyl)methyl]-1β,4aβ-dimethyl-5-(2-methyl-1,3-dioxolan-2-yl)-hexahydro-2,5(3H,6H)-naphthalenedione 
• 184485-47-0 (1S,4aS)-(+)-trans-1α-[(2,5-dimethoxyphenyl)methyl]-1β,4aβ-dimethyl-5-(2-methyl-1,3-dioxolan-2-yl)-2-methyleneoctahydro-5(6H)-naphthalenone 
• 274900-31-1 (4aS,5S,8aS)-5-(2,5-Dimethoxy-benzyl)-5,8a-dimethyl-6-methylene-octahydro-naphthalen-1-one 
• 184485-49-2 (-)-(1R,4aS,8aS)-1β,2β,4aβ-trimethyl-1α-[(2',5'-dimethoyphenyl)methyl]-1,2,3,4,4a,5,6,7,8,8aα-decahydronaphthalen-5-one 
• 184485-50-5 (-)-(1R,4aS,8aS)-1β,2β,4aβ-trimethyl-1α-[(2',5'-dimethoxyphenyl)methyl]-5-exo-methylene-(3H)-1,4,4a,5,6,7,8,8a-octahydronaphthalene 
• 41722-49-0 (S)-1,4a-dimethyl-4,4a,7,8-tetrahydronaphthalene-2,5(3H,6H)-dione 
• 61187-42-6 avarol dimethyl ether 
• 60732-17-4 2,5-dimethoxybenzyl bromide 
• 33524-31-1 2,5-dimethoxybenzyl alcohol 
• 26742-33-6 (4aS)-1,4aβ-dimethyl-4,4a,7,8-tetrahydronaphthalene-2,5(3H,6H)-dione-5-ethyeneacetal 
• 55303-99-6 avarone 

Downstream Products

• 61187-44-8 17,20-O-diacetylavarol 
• 55035-54-6 Diacetyl-avarol 
• 72853-81-7 Aureol 
• 83995-06-6 3'-methylamino-avarone 
• 83995-05-5 (-)-20-methylaminoavarone 

Relevant articles and documents

NOVEL USE OF SESQUITERPENE DERIVATIVE

The present disclosure relates to a novel use of a sesquiterpene derivative, more particularly to a composition for preventing, improving or treating macular degeneration or macular edema caused by vascular leakage in the eye, the composition containing a

Highly efficient total synthesis of the marine natural products (+)-avarone, (+)-avarol, (-)-neoavarone, (-)-neoavarol and (+)-aureol

Biologically important and structurally unique marine natural products avarone (1), avarol (2), neoavarone (3), neoavarol (4) and aureol (5), were efficiently synthesized in a unified manner starting from (+)-5-methyl-Wieland- Miescher ketone 10. The synthesis involved the following crucial steps: i) Sequential BF3·Et2O-in-duced rearrangement/ cyclization reaction of 2 and 4 to produce 5 with complete stereoselectivity in high yield (2 → 5 and 4 → 5); ii) strategic salcomine oxidation of the phenolic compounds 6 and 8 to derive the corresponding quinones 1 and 3 (6 → 1 and 8 →3); and iii) Birch reductive alkylation of 10 with bromide 11 to construct the requisite carbon framework 12 (10 + 11 → 12). An in vitro cytotoxicity assay of compounds 1-5 against human histiocytic lymphoma cells U937 determined the order of cytotoxic potency (3 > 1 > 5 > 2 > 4) and some novel aspects of structure-activity relationships.

Unified synthesis of quinone sesquiterpenes based on a radical decarboxylation and quinone addition reaction

A unified synthesis of several quinone sesquiterpenes is described herein. Essential to this strategy is a novel radical addition reaction that permits the attachment of a fully substituted bicyclic core 16 to a variably substituted quinone 10. The addition product 15 can be further functionalized, giving access to natural products with a high degree of oxygenation at the quinone unit. The quinone addition reaction is characterized by excellent chemoselectivity, taking place only at conjugated and unsubstituted double bonds, and regioselectivity, being strongly influenced by the resonance effect of heteroatoms located on the quinone ring. These features were successfully applied to the synthesis of avarol (1), avarone (2), methoxyavarones (4, 5), ilimaquinone (6), and smenospongidine (7), thereby demonstating the synthetic value of this new method.

Enantioselective total synthesis of avarol and avarone

Formation of the C11-C1' bond through application of Barton's radical decarboxylation and quinone addition is the cornerstone of a new convergent and concise synthesis of the marine metabolites avarol (1) and avarone (2; see scheme), for which antimitotic, antileukemic, and antiviral effects have been reported.

Enantiospecific total synthesis of (+)- and (-)-avarone and -avarol

Enantiopure avarol and its oxidized congener avarone are synthesized in both podal series from an optically pure Wieland-Miescher enone; preliminary results from biochemical studies are summarized.

Stereoselective synthesis of (+)-avarol, (+)-avarone, and some nonracemic analogues

Synthesis of the rearranged drimane sesquiterpenoids (+)-avarol and (+)-avarone from Wieland-Miescher ketone is described. This synthetic sequence provides convenient access to the natural enantiomers and, based on comparison of the optical rotation of synthetic avarol dimethyl ether with literature data, affords material of significantly higher optical rotation than a natural source. Similar synthetic strategies have been used to obtain several related compounds, including a decalin bearing an exocyclic olefin and a highly substituted cyclohexane, that can be viewed as hybrids of the trans-fused avarol and cis-fused arenarol skeletons.