Patent · US Expired

Process for the preparation of &bgr; hydroxy-&dgr; lactone using novel intermediates

US6388097B1 · kind B1 · utility

0Cited by

1References

9Claims

0Family size

Assignee

COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH · IN

Inventors

Sandeep Raghunath Ghorpade · Jamkhed, IN
Uttam Ramrao Kalkote · Jamkhed, IN
Subhash Prataprao Chavan · Jamkhed, IN
Sunil Ramchandra Bhide · Jamkhed, IN
Thottappillil Ravindranathan · Jamkhed, IN

Key dates

Filing date	Feb 15, 2001
Grant date	May 14, 2002
Priority date	—
Expiry date	Feb 15, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F7/1892
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of optically active 6-hydroxymethyl-4-tert-butyldimethylsilyloxy)-(4S,6R)-tetrahydro-2H-2-pyranone (&bgr; Hydroxy &dgr; Lacone) and the compound 3-oxo-5-(tert.butyldimethylsilyloxy-(1S-5S)-cyclohexylacetate having the formula the compound 3-hydroxy-5-(tert,butyldimethylsilyloxy)-(3R,5S)-cyclohexan-1 having the formula

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