摘要:
The present invention provides paclitaxel derivatives of formula I ##STR1## in which R.sup.1 is --COR.sup.z in which R.sup.Z is RO-- or R;R.sup.2 is C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-6 cycloalkyl, or a radical of the formula --W--R.sup.x in which W is a bond, C.sub.2-6 alkenediyl, or --(CH.sub.2).sub.t --, in which t is one to six; and R.sup.x is naphthyl, phenyl, or heteroaryl, and furthermore R.sup.x can be optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups;R.sup.a is --OCOR, H, OH, --OR, --OSO.sub.2 R, --OCONR.sup.o R, --OCONHR, --OCOO(CH.sub.2).sub.t R, or --OCOOR;R.sup.b and R.sup.c are both hydroxy or together form a bond with the carbon atoms to which they are attached; andR and R.sup.o are independently C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.3-6 cycloalkyl, C.sub.2-6 alkynyl, or phenyl, optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups.Also provided by this invention are pharmaceutical formulations (compositions) and a method of treating mammalian tumors with a compound of formula I.
摘要:
This invention relates to a fluorinated taxol of formula I ##STR1## in which R.sup.1 is --COR.sup.z in which R.sup.z is RO-- or R;R.sup.g is C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-6 cycloalkyl, or a radical of the formula --W--R.sup.x in which W is a bond, C.sub.2-6 alkenediyl, or --(CH.sub.2).sub.t --, in which t is one to six; and R.sup.x is naphthyl, furyl, thienyl or phenyl, and furthermore R.sup.x can be optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups;R.sup.2 is --OCOR, H, OH, --OR, --OSO.sub.2 R, --OCONR.sup.o R, --OCONHR, --OCOO(CH.sub.2).sub.t R, or --OCOOR; andR and R.sup.o are independently C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.3-6 cycloalkyl, C.sub.2-6 alkynyl, or phenyl, optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups.Further provided by this invention are pharmaceutical formulations and useful intermediates for the fluorinated taxols of formula I. A method of treating mammalian tumors using a compound of formula I is also provided.
摘要:
An antitumor compound of formula I ##STR1## in which R.sup.1 is --COR.sup.z in which R.sup.z is t-butyloxy, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-6 cycloalkyl, or phenyl, optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups;R.sup.2 is C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-6 cycloalkyl, or a radical of the formula --W--R.sup.x in which W is a bond, C.sub.2-6 alkenediyl, or --(CH.sub.2).sub.t --, in which t is one to six; and R.sup.x is naphthyl, furyl, thienyl or phenyl, and furthermore R.sup.x can be optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups;R.sup.3 is OCOR, --OCOOR, H, or OH; R.sup.4 is hydrogen; or R.sup.3 and R.sup.4 jointly form a carbonyl group; and R is C.sub.1-6 alkyl.Also provided by this invention are pharmaceutical formulations (compositions) and a method of treating mammalian tumors with a compound of formula I.
摘要:
The present invention relates to 10-desacetoxy-11,12-dihydrotaxol-10,12(18)-diene derivatives which are useful as antitumor agents and as intermediates for the preparation of 10-desacetoxytaxol. Also disclosed is a novel process for the preparation of 10-desacetoxytaxol which comprises treating hydroxy protected 10-deacetyltaxol with 1,1,2-trifluoro-2-chlorotriethylamine followed by catalytic hydrogenation.
摘要:
This invention relates to a fluorinated taxol of formula I ##STR1## in which R.sup.1 is benzoyl or t-butyloxycarbonyl; R.sup.2 is acetoxy, hydrogen or hydroxy; and the wavy line indicates either the .alpha.- or the .beta.-configuration.Further provided by this invention are pharmaceutical formulations and useful intermediates for the fluorinated taxols of formula I. A method of treating mammalian tumors using a compound of formula I is also provided.
摘要:
R.sup.g is C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-6 cycloalkyl, or a radical of the formula --W--R.sup.x in which W is a bond, C.sub.2-6 alkenediyl, or --(CH.sub.2).sub.t --, in which t is one to six; and R.sup.x is naphthyl, phenyl, or heteroaryl, and furthermore R.sup.x can be optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups;R.sup.2 is --OCOR, H, OH, --OR, --OSO.sub.2 R, --OCONR.sup.o R, --OCONHR, --OCOO(CH.sub.2).sub.t R, or --OCOOR; andR and R.sup.o are independently C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.3-6 cycloalkyl, C.sub.2-6 alkynyl, or phenyl, optionally substituted with one to three same or different C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or --CF.sub.3 groups.Further provided by this invention are pharmaceutical formulations and intermediates for the the preparation of deoxy taxols of formula I. A method of treating mammalian tumors using a compound of formula I is also provided.
摘要:
The present invention relates to 10-desacetoxytaxol and derivatives thereof, which are useful as antitumor agents. These compounds have the formula ##STR1## wherein R.sub.2 is hydrogen, hydroxy or a protected hydroxy group; R.sub.3 and R.sub.4 are independently hydrogen, hydroxy, a protected hydroxy group, methyl, --SH, --NH.sub.2, or --NR.sub.8 R.sub.9 ; R.sub.5 is R.sub.10, or --OR.sub.10 ; R.sub.6 and R.sub.7 are independently hydrogen, alkyl, or aryl; R.sub.8 and R.sub.9 are independently hydrogen, alkyl, alkenyl, alkynyl, or aryl; and R.sub.10 is alkoxy, alkyl, alkenyl, alkynl, or aryl.
摘要:
The present invention relates to a hydrophilic surface structure of the non-hydrophilic substrate and the manufacturing method for using the same. The hydrophilic substrate surface structure is fabricated by forming an amphiphilic polymer layer, a cross-linked stacking layer, and a hydrophilic layer in sequence on the surface of a non-hydrophilic substrate. For example, the hydrophobic surface of poly(dimethylsiloxane) (PDMS) can be made from hydrophobic to hydrophilic and the hydrophilicity can be retained for a long period of time and resist protein adsorption. The hydrophilic thin films give long term stability to the PDMS surface by resisting hydrophobicity recovery, which is the major problem with PDMS. The disclosed method can further be used in the immobilization of protein and other molecules. This method can also be used for modifying other substrates which suffer problems of surface instability.
摘要:
The present invention provides a splitter including a seat, a first inner core, a second inner core, a first coil, an outer core and a second coil. The seat has a bobbin, and the first coil is wound on the bobbin. The first inner core and the second inner core, disposed on the bobbin, are assembled with each other to cover the bobbin. The outer core and the first inner core are assembled with each other. The second coil is disposed between the outer core and the first inner core.