The present invention provides a pyrimidine nucleoside compound represented by the following formula (1):
[wherein one of X and Y is cyano and the other is hydrogen; and i) R
1
is hydrogen, and R
2
is alkyloxycarbonyl wherein the alkyl moiety is straight or branched C
5-12
alkyl (the alkyl may be substituted), or alternatively, ii) R
1
is alkyloxycarbonyl wherein the alkyl moiety is straight or branched C
9
alkyl or alkenyloxycarbonyl wherein the alkenyl moiety is straight or branched C
9
alkenyl, and R
2
is hydrogen] or a salt thereof. The pyrimidine nucleoside compound or a salt thereof of the present invention shows a higher antitumor effect than existing pyrimidine nucleoside compounds.
The present invention provides a pyrimidine nucleoside compound represented by the following formula (1):
[wherein one of X and Y is cyano and the other is hydrogen; and i) R
1
is hydrogen, and R
2
is alkyloxycarbonyl wherein the alkyl moiety is straight or branched C
5-12
alkyl (the alkyl may be substituted), or alternatively, ii) R
1
is alkyloxycarbonyl wherein the alkyl moiety is straight or branched C
9
alkyl or alkenyloxycarbonyl wherein the alkenyl moiety is straight or branched C
9
alkenyl, and R
2
is hydrogen] or a salt thereof. The pyrimidine nucleoside compound or a salt thereof of the present invention shows a higher antitumor effect than existing pyrimidine nucleoside compounds.
Anaerobically biodegradable perfume delivery system
申请人:The Procter & Gamble Co.
公开号:US20020013255A1
公开(公告)日:2002-01-31
The present invention relates to a fragrance raw material delivery system comprising:
A) anaerobically biodegradable particles having:
i) an average particle size of from about 5 microns;
ii) a density of from about 0.9 g/cm
3
to about 1.5 g/cm
3
; and
B) a fragrance or fragrance accord.
The fragrance delivery systems of the present invention are suitable for use in delivering a fragrance or fragrance accord to a situs, inter alia, fabric in a manner which sustains the delivery of the aesthetic elements while providing a completely biodegradable vehicle.
The present invention relates to a fragrance raw material delivery system comprising:
A) biodegradable particles having:
i) an average particle size of from about 5 microns;
ii) a density of from about 0.9 g/cm
3
to about 1.5 g/cm
3
; and
B) a fragrance or fragrance accord.
The fragrance delivery systems of the present invention are suitable for use in delivering a fragrance or fragrance accord to a situs, inter alia, fabric in a manner which sustains the delivery of the aesthetic elements while providing a completely biodegradable vehicle.