Patent · US Expired

4-thio coumarins

US6703514B2 · kind B2 · utility

1Cited by

2References

26Claims

0Family size

Assignee

VivoQuest, Inc. · US

Inventors

Jie Wu · Freeport, US
Zhen Yang · Lo Wu, CN
Reza Fathi · Oradell, US
Qiang Zhu · Wantage, US
Lisha Wang · Basel, CH

Key dates

Filing date	May 13, 2003
Grant date	Mar 9, 2004
Priority date	—
Expiry date	May 13, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D311/56
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

4-thio substituted coumarin derivatives and coumarin dimers are provided, as well as processes for their preparation. A synthetic process for the preparation of 4-thio substituted coumarin derivatives is provided using mild reaction conditions, which maintains a high substituent tolerance and is appropriate for use in solid phase syntheses for producing a library of 4-thio substituted coumarin derivatives for biological screening.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.