53948-09-7

Basic information

• Product Name: aristololactam BII
• Synonyms: aristololactam BII;1,2-Dimethoxy-4,5-dihydrodibenzo[cd,f]indole-4-one;1,2-Dimethoxydibenz[cd,f]indol-4(5H)-one;Aristolactam BII;Cepharanone B;Aristolochic acid BII
• CAS NO: 53948-09-7
• Molecular Formula: C17H13NO3
• Molecular Weight: 279.29002
• Mol File: 53948-09-7.mol
• Article Data: 13

Chemical Properties

• Melting Point: 264-265 °C
• Boiling Point: 429.7 °C at 760 mmHg
• Flash Point: 213.7 °C
• Appearance: /
• Density: 1.332 g/cm³
• Vapor Pressure: 1.37E-07mmHg at 25°C
• Refractive Index: 1.708
• PKA: 12.31±0.20(Predicted)
• CAS DataBase Reference: aristololactam BII(CAS DataBase Reference)
• NIST Chemistry Reference: aristololactam BII(53948-09-7)
• EPA Substance Registry System: aristololactam BII(53948-09-7)

Safety Data

• Hazardous Substances Data: 53948-09-7(Hazardous Substances Data)

Usage

Description

Aristololactam BII is a base derived from the callus tissue of Stephania cepharantha, which is the domethoxy analogue of cepharanone A. It forms a mass of pale yellow needles when crystallized from ethanol (EtOH) and exhibits a blue fluorescence. The ultraviolet spectrum of aristololactam BII in EtOH is highly complex, with absorption maxima at 232, 263, 276, 287, 319, and 396 nm.

Uses

1. Used in Pharmaceutical Industry:
Aristololactam BII is used as a pharmaceutical compound for its potential therapeutic applications. The expression is: aristololactam BII is used as a pharmaceutical compound for its potential therapeutic applications due to its complex ultraviolet spectrum and blue fluorescence properties.
2. Used in Research and Development:
Aristololactam BII can be utilized as a research compound for further investigation into its chemical properties, potential applications, and possible interactions with other compounds. The expression is: aristololactam BII is used as a research compound for further investigation into its chemical properties, potential applications, and possible interactions with other compounds due to its unique characteristics and complex ultraviolet spectrum.
3. Used in Drug Delivery Systems:
Similar to gallotannin, aristololactam BII could potentially be employed in the development of novel drug delivery systems to enhance its applications and efficacy. The expression is: aristololactam BII is used as a component in drug delivery systems for the potential enhancement of its applications and efficacy, considering its unique properties and complex ultraviolet spectrum.
Please note that the specific applications and reasons for using aristololactam BII may vary depending on the research findings and further investigation into its properties and potential interactions with other compounds. The provided uses are based on the information given in the materials and are meant to serve as examples of possible applications.

References

Akasu, Itokawa, Fujita, Tetrahedron Lett., 3609 (1974)

InChI:InChI=1/C17H13NO3/c1-20-13-8-11-14-12(18-17(11)19)7-9-5-3-4-6-10(9)15(14)16(13)21-2/h3-8H,1-2H3,(H,18,19)

Upstream product

• 186581-53-3 diazomethane 
• 53948-07-5 aristololactam A II 
• 112501-42-5 piperolactam A 
• 144266-54-6 3,4-dimethoxy-9,10-dehydrodibenzocoumaranone 
• 144266-53-5 1,2-dimethoxy-6a,7-dehydrodibenzochromanone 
• 144266-50-2 methyl 2-(2'-bromophenylacetyl)-4,5-dimethoxyphenylacetate 
• 1042722-42-8 4-bromo-5,6-dimethoxyisoindolin-1-one 
• 40138-16-7 2-formylbenzene boronic acid 
• 1310569-45-9 4,5-dimethoxy-2-(2-oxo-2-phenyl-acetyl)-benzaldehyde 
• 144709-20-6 3,4-dimethoxy-6-iodobenzamide 
• 61203-48-3 2-iodo-4,5-dimethoxybenzoic acid 

Downstream Products

• 112501-42-5 piperolactam A 

Relevant articles and documents

ARISTOLACTAMS AND 4,5-DIOXOAPORPHINES FROM PIPER LONGUM

Nine alkaloids were isolated from the cold ethanol extract of Piper longum roots, of which six known compounds were identified as cepharadione B, cepharadione A, cepharanone B, aristolactam AII, norcepharadione B, and 2-hydroxy-1-methoxy-4H-dibenzoquinoline-4,5(6H)-dione.The three new alkaloids were characterized as 10-amino-4-hydroxy-3-methoxyphenanthrene-1-carboxylic acid lactam , 10-amino-4-hydroxy-2,3-dimethoxyphenanthrene-1-carboxylic acid lactam and 2-hydroxy-1-methoxy-6-methyl-4H-dibenzoquinoline-4,5(6H)-dione .Key Word Index - Piper longum; Piperaceae; root alkaloids; aristolactams; dioxoaporphines; piperolactam A; piperolactam B; piperadione; NMR.

A simple, efficient route to the synthesis of dibenzocoumaranones and aristolactams

We report the first synthesis of dibenzo[cdf]coumaranones that could be readily transformed into their nitrogen analogues, the aristolactams.

Pd(II)/Cu(II)-Catalyzed Regio- and Stereoselective Synthesis of (E)-3-Arylmethyleneisoindolin-1-ones Using Air as the Terminal Oxidant

Regio- and stereoselective synthesis of (E)-3-arylmethyleneisoindolin-1-ones via Pd(II)/Cu(II)-catalyzed one-pot C-C/C-N bond forming sequence between amides and styrenes is reported. This method provides facile and rapid access to a diverse range of such compounds using readily available starting materials under mild aerobic conditions with good functional group tolerance and high selectivity and efficiency. Further elaboration of the products obtained from this process enabled very short and efficient syntheses of aristolactam and indoloisoquinolinone alkaloids.

Heteroannulation enabled by a bimetallic Rh(III)/Ag(i) relay catalysis: Application in the total synthesis of aristolactam BII

A redox-neutral bimetallic Rh(iii)/Ag(i) relay catalysis allowed the efficient construction of 3-alkylidene isoindolinones and 3-alkylidene isobenzofuranones. The Rh(iii) catalyst was responsible for the C-H monofluoroalkenylation reaction, whereas the Ag(i) salt was an activator for the follow-up cyclization. The methodology developed was applied as a key step in the rapid total synthesis of the natural product aristolactam BII.