N-long chain acyl neutral amino acid esters

Details N-long chain acyl neutral amino acid esters N-long chain acyl neutral amino acid esters

1992-10-21

1994-08-02

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

552544, C07J 4100, C07J 4300

Patent

active

053347137

ABSTRACT:
The present invention relates to N-long chain acyl neutral amino acid esters of the general formula (I): ##STR1## wherein X represents an ester-forming residue of a sterol; COR represents a long chain acyl group having 8 to 22 carbon atoms; R.sub.1 and R.sub.2 are identical or different from each other, each represents a hydrogen atom or a straight chain or branched alkyl group having 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 together form an alkylene group; and n represents 0, 1 or 2. The compounds are particularly useful in cosmetic or pharmaceutical preparations for external use.

REFERENCES:
patent: 3968105 (1976-07-01), Gray
patent: 4614619 (1986-09-01), Shannon
patent: 5153340 (1992-10-01), Ichikawa et al.
Chemical Abstracts, AN 178666e, vol. 103, No. 22, Dec. 2, 1985, G. Quentin, et al., "Polymer Support Of A Steroid with a Peptide Spacer".
Chemical Abstracts, AN 861119w, vol. 94, No. 12, Mar. 23, 1981, "Emulsifier Composition", p. 118.

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