Patent · US Expired

Chemoprotective isothiocyanates

USRE36784E · kind E · reissue

65Cited by
3References
44Claims
0Family size

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Inventors

Key dates

Filing dateMay 2, 1997
Grant dateJul 18, 2000
Priority date
Expiry dateMay 2, 2017

Classification

  • Technology area (CPC —)General

Abstract

Sulforaphane has been isolated and identified as a major and very potent phase II enzyme inducer in broccoli (Brassica oleracea italica). Sulforaphane is a monofunctional inducer, inducing phase II enzymes selectively without the induction of aryl hydrocarbon receptor-dependent cytochromes P-450 (phase I enzymes). Analogues differing in the oxidation state of sulfur and the number of methylene groups were synthesized, and their inducer potencies were measured. Sulforaphane is the most potent of these analogues. Other analogues having different substituent groups in place of the methylsulfinyl group of sulforaphane were also synthesized and assessed. Of these, the most potent are 6-isothiocyanato-2-hexanone and exo-2-acetyl-6-isothiocyanatonorbornane.

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