Chemoprotective isothiocyanates
DCFirst Claim
1. A .[.pharmaceutical.]. composition comprising .[.an active ingredient which is.]. .Iadd.an analogue of .Iaddend.sulforaphane ((-)1-isothiocyanato-(4R)-(methylsulfinyl)butane) .[.(CAS 4478-93-7) or an analogue thereof.]., said analogue being selected from the group consisting of:
- 6-isothiocyanato-2-hexanone .[.(GHP
1105).].;
exo-2-acetyl-6-isothiocyanatonorbornane .[.(GHP
1066).].;
exo-2-isothiocyanato-6-methylsulfonylnorbornane .[.(GHP
1068).].;
6-isothiocyanato-2-hexanol .[.(GHP 1106.].;
1-isothiocyanato-4-dimethylphosphonylbutane .[.(GHP
1078).].;
exo-2-(1'"'"'-hydroxyethyl)-5-isothiocyanatonorbornane .[.(GHP
1075).].;
exo-2-acetyl-5-isothiocyanatonorbornane .[.(GHP
1067).].;
1-isothiocyanato-5-methylsulfonylpentane .[.(GHP
1003).].; and
cis- or trans-3-(methylsulfonyl)cyclohexylmethylisothiocyanate .[.(GHP 1079 or
1080).].. .[.2. The pharmaceutical composition of claim 1 wherein said active ingredient is sulforaphane..]..[.3. The pharmaceutical composition of claim 1 wherein said active ingredient is selected from the group consisting of;
6-isothiocyanato-2-hexanone (GHP
1105);
exo-2-acetyl-6-isothiocyanatonorbornane (GHP
1066);
exo-2-isothiocyanato-6-methylsulfonylnorbornane (GHP
1068);
6-isothiocyanato-2-hexanol (GHP
1106);
1-isothiocyanato-4-dimethylphosphonylbutane (GHP
1078);
exo-2-(1'"'"'-hydroxyethyl)-5-isothiocyanatonorbornane (GHP
1075);
exo-2-acetyl-5-isothiocyanatonorbornane (GHP
1067);
1-isothiocyanato-5-methylsulfonylpentane (GHP
1003); and
cis- or trans-3-(methylsulfonyl)cyclohexylmethylisothiocyanate (GHP 1079 or
1080)..]..[.4. The pharmaceutical composition of claim 1 further
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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.
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Citations
16 Claims
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1. A .[.pharmaceutical.]. composition comprising .[.an active ingredient which is.]. .Iadd.an analogue of .Iaddend.sulforaphane ((-)1-isothiocyanato-(4R)-(methylsulfinyl)butane) .[.(CAS 4478-93-7) or an analogue thereof.]., said analogue being selected from the group consisting of:
- 6-isothiocyanato-2-hexanone .[.(GHP
1105).].;
exo-2-acetyl-6-isothiocyanatonorbornane .[.(GHP
1066).].;
exo-2-isothiocyanato-6-methylsulfonylnorbornane .[.(GHP
1068).].;
6-isothiocyanato-2-hexanol .[.(GHP 1106.].;
1-isothiocyanato-4-dimethylphosphonylbutane .[.(GHP
1078).].;
exo-2-(1'"'"'-hydroxyethyl)-5-isothiocyanatonorbornane .[.(GHP
1075).].;
exo-2-acetyl-5-isothiocyanatonorbornane .[.(GHP
1067).].;
1-isothiocyanato-5-methylsulfonylpentane .[.(GHP
1003).].; and
cis- or trans-3-(methylsulfonyl)cyclohexylmethylisothiocyanate .[.(GHP 1079 or
1080).].. .[.2. The pharmaceutical composition of claim 1 wherein said active ingredient is sulforaphane..]..[.3. The pharmaceutical composition of claim 1 wherein said active ingredient is selected from the group consisting of;
6-isothiocyanato-2-hexanone (GHP
1105);
exo-2-acetyl-6-isothiocyanatonorbornane (GHP
1066);
exo-2-isothiocyanato-6-methylsulfonylnorbornane (GHP
1068);
6-isothiocyanato-2-hexanol (GHP
1106);
1-isothiocyanato-4-dimethylphosphonylbutane (GHP
1078);
exo-2-(1'"'"'-hydroxyethyl)-5-isothiocyanatonorbornane (GHP
1075);
exo-2-acetyl-5-isothiocyanatonorbornane (GHP
1067);
1-isothiocyanato-5-methylsulfonylpentane (GHP
1003); and
cis- or trans-3-(methylsulfonyl)cyclohexylmethylisothiocyanate (GHP 1079 or
1080)..]..[.4. The pharmaceutical composition of claim 1 further - View Dependent Claims (14)
- 6-isothiocyanato-2-hexanone .[.(GHP
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2. comprising a pharmaceutically acceptable excipient..].5. A compound consisting of:
- 1-isothiocyanato-5-methylsulfonylpentane (CH3
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3. --SO2 --(CH2)5 --NCS) .[.((GHP 1003).].. 6. A compound consisting of:
- 6-isothiocyanato-2-hexanone (CH3 CO(CH2)4
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4. NCS) .[.(GHP 1105).].. 7. A compound consisting of:
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5. exo-2-acetyl-6-isothiocyanatonorbornane .[.(GHP 1066).].. 8. A compound consisting of:
- exo-2-isothiocyanato-6-methylsulfonylnorbornane .[.(GHP
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6. 1068).].. 9. A compound consisting of:
- 6-isothiocyanato-2-hexanol .[.(GHP
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7. 1106).].. 10. A compound consisting of:
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8. 1-isothiocyanato-4-dimethylphosphonylbutane .[.(GHP 1078).].. 11. A compound consisting of:
- exo-2-(1'"'"'-hydroxyethyl)-5-isothiocyanatonorbornane
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9. [.(GHP 1075).].. 12. A compound consisting of:
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10. exo-2-acetyl-5-isothiocyanatonorbornane .[.(GHP 1067).].. 13. A compound consisting of:
- cis-or trans-3-(methylsulfonyl)cyclohexylmethylisothiocyanate .[.(GHP 1079 or
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11. 1080).].. 14. A method for suppressing the formation of chemically-induced mammary tumors or hepatomas, comprising:
administering to a mammal a chemoprotective composition .[.consisting essentially of.]. .Iadd.comprising an analogue of .Iaddend.sulforaphane ((-)1-isothiocyanato-(4R)-(methylsulfinyl)butane) .[.or an analogue thereof.]., said analogue being selected from the group consisting of;
6-isothiocyanato-2-hexanone .[.(GHP
1105).].;
exo-2-acetyl-6-isothiocyanatonorbornane .[.(GHP
1066).].;
exo-2-isothiocyanato-6-methylsulfonylnorbornane .[.(GHP
1068).].;
6-isothiocyanato-2-hexanol .[.(GHP
1106).].;
1-isothiocyanato-4-dimethylphosphonylbutane .[.(GHP
1078).].;
exo-2-(1'"'"'-hydroxyethyl)-5-isothiocyanatonorbornane .[.(GHP
1075).].;
exo-2-acetyl-5-isothiocyanatonorbornane .[.(GHP
1067).].;
1-isothiocyanato-5-methylsulfonylpentane .[.(GHP
1003).].; and
cis- or trans-3-(methylsulfonyl)cyclohexylmethylisothiocyanate .[.(GHP 1079 or
1080).]., in an amount effective in producing a mammary tumor or hepatoma
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12. formation suppressing effect. .Iadd.15. A composition comprising an active ingredient which is sulforaphane ((-)1-isothiocyanato-(4R)-(methylsulfinyl)(butane) or an analogue thereof, said analogue being selected from the group consisting of:
- 6-isothiocyanato-2-hexanone;
exo-2-acetyl-6-isothiocyanatonorbornane;
exo-2-isothiocyanato-6-methylsulfonylnorbornane;
6-isothiocyanato-2-hexanol;
1-isothiocyanato-4-dimethylphosphonylbutane;
exo-2-(1'"'"'-hydroxyethyl)-5-isothiocyanatonorbornane;
exo-2-acetyl-5-isothiocyanatonorbornane;
1-isothiocyanato-5-methylsulfonylpentane; and
cis- or trans-3-(methylsulfonyl)cyclohexylmethylisothiocyanate, and a suitable
- 6-isothiocyanato-2-hexanone;
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16. Iaddend..Iadd. 7. The method of promoting human health comprising the steps of:
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(a) extracting sulforaphane or an analogue thereof from a natural source; and (b) providing said sulforaphane or analogue thereof to a human. .Iaddend. - View Dependent Claims (13, 15)
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Specification