Certain embodiments of the invention provide a lubricating oil composition comprising a lubricating oil base stock and a compound of formula (I):

##STR00001##

or a salt thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have any of the values defined in the specification, as well as methods of use thereof.

Certain embodiments of the invention provide a lubricating oil composition comprising a lubricating oil base stock and a compound of formula (I):

##STR00001##

or a salt thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have any of the values defined in the specification, as well as methods of use thereof.

An object of the present invention is to provide novel amine-protecting groups useful for the synthesis of special amino acids. Provided is an amine-protecting group.

An object of the present invention is to provide novel amine-protecting groups useful for the synthesis of special amino acids. Provided is an amine-protecting group.

Disclosed is a method for inhibiting cancer cell growth in a subject in need thereof, comprising administering to the subject an effective amount of a compound from Antrodia camphorata, wherein the compound is represented by formula (I): ##STR00001##
wherein R1 is a hydrogen atom or an acetyl group; and a method of inhibiting cancer cell growth by using the compound, the cancer is selected from the group consisting of lung cancer, colon cancer, prostate cancer, liver cancer and breast cancer.

Disclosed is a method for inhibiting cancer cell growth in a subject in need thereof, comprising administering to the subject an effective amount of a compound from Antrodia camphorata, wherein the compound is represented by formula (I): ##STR00001##
wherein R1 is a hydrogen atom or an acetyl group; and a method of inhibiting cancer cell growth by using the compound, the cancer is selected from the group consisting of lung cancer, colon cancer, prostate cancer, liver cancer and breast cancer.

The present invention provides a compound represented by general formula (1).

##STR00001##

(In the formula, R.sup.1 represents an alkyl group having 2 to 9 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms which may have a substituent, or a phenyl group which may have a substituent; R.sup.2 represents an alkyl group having 1 to 3 carbon atoms; R.sup.3 to R.sup.5 independently represent a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms; R.sup.6 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms which may have a substituent, or an alkoxy group having 1 to 5 carbon atoms; n represents 0 or 1; and the wavy line represents a cis form, a trans form or a mixture of a cis form and a trans form.)

The present invention provides a compound represented by general formula (1).

##STR00001##

(In the formula, R.sup.1 represents an alkyl group having 2 to 9 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms which may have a substituent, or a phenyl group which may have a substituent; R.sup.2 represents an alkyl group having 1 to 3 carbon atoms; R.sup.3 to R.sup.5 independently represent a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms; R.sup.6 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms which may have a substituent, or an alkoxy group having 1 to 5 carbon atoms; n represents 0 or 1; and the wavy line represents a cis form, a trans form or a mixture of a cis form and a trans form.)

The invention relates to mixtures having: components (a) having at least one fragrance of the formula (I)

##STR00001## where R1=OC-R2, CH.sub.2OR3, C1-C8 open-chain or branched aliphatic radical, optionally substituted and/or unsaturated, with R2=an open-chain or branched aliphatic radical, optionally substituted and/or unsaturated, having 2-10 C atoms, with R3=an open-chain or branched aliphatic radical, optionally substituted and/or unsaturated, having 1-8 C atoms, and components (b) having at least one fragrance, different from the fragrances of component a,
characterized in that the weight ratio of all components (a) to all components (b) is from 1:10 to 1:10000.

The invention relates to mixtures having: components (a) having at least one fragrance of the formula (I)

##STR00001## where R1=OC-R2, CH.sub.2OR3, C1-C8 open-chain or branched aliphatic radical, optionally substituted and/or unsaturated, with R2=an open-chain or branched aliphatic radical, optionally substituted and/or unsaturated, having 2-10 C atoms, with R3=an open-chain or branched aliphatic radical, optionally substituted and/or unsaturated, having 1-8 C atoms, and components (b) having at least one fragrance, different from the fragrances of component a,
characterized in that the weight ratio of all components (a) to all components (b) is from 1:10 to 1:10000.