| 摘要 |
PCT No. PCT/GB93/02061 Sec. 371 Date May 30, 1995 Sec. 102(e) Date May 30, 1995 PCT Filed Oct. 4, 1993 PCT Pub. No. WO94/07844 PCT Pub. Date Apr. 14, 1994A class of pseudoceramide having the formula shown in which: R1 is a hydrocarbon group; R2-R8 are each independently H or CH3; R9 and R10 are each independently H or hydrocarbon group of up to 24 C atoms; X1 and X2, are independently H or OH; Y1 and Y2 are H or OH, at least one of Y1 and Y2 being OH; wherein the C atom Z, with associated R9 and R10, can be absent; and the C atoms W, with associated R7 and Y2, can be absent, is disclosed. These find use in compositions, particularly cosmetic compositions, suitable for topical application to skin, hair or nails.
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