This degassing of a coupling liquid of an apparatus for the generation of pressure waves in the coupling liquid by a chemical route, the coupling liquid thus treated and generating shock waves using such a coupling liquid.

摘要

Compounds of formula (I), wherein R represents a C1-12? straight-chain alkyl radical which may comprise one or more halogen atoms; a C3-12? branched-chain alkyl radical which may comprise one or more halogen atoms; a C2-8? alkenyl radical; or a C1-4? alkyl radical comprising an aromatic core; R' represents a hydrogen atom or an alkoxycarbonyl grouping of formula (a); wherein R1? represents a C1-6? alkyl radical; and X represents an oxygen atom or a (b) grouping; the cosmetically or pharmaceutically acceptable acid addition salts thereof, and the use thereof for treating hair loss.