Gist-Brocades N.v.

Akzo N.v.

Dsm N.v.

Gist-Brocades B.v.

Van Zoest, Willem J.

Smid, Peter M.

Weber, Pieter G.

Marx, Arthur F.

Pieter Gijsbert Weber

Jan Verweij

Johannes Wilhelmus Lambers

Hein Simon Koger

Arthur F Marx

Willem J Van Zoest

Peter M Smid

Jan W Smeets

Novel phytosphingosine-based analogs of ceramide I, methods for the preparation of these novel compounds, cosmetic and pharmaceutical compositions containing such compounds, and methods for the use thereof are described.

Phytosphingosine-based ceramide I analogs

Diamine salts of clavulanic acid

New diamine salts of clavulanic acid, pharmaceutical compositions comprising the same, and a new process using these diamine salts in the preparation of clavulanic acid and salts and esters thereof have been provided.

New diamine mono and diamine di salts of clavulanic acid, pharmaceutical compositions comprising the same, and a new process using these diamine salts in the preparation of clavulanic acid and salts and esters thereof have been provided.

Selective N-acylation of amino alcohols

A process for the preparation of novel 14.alpha., 17.alpha.-dihydroxy-17.beta.-substituted steroids by reacting 14.alpha.-hydroxy-17-oxo-steroids with metal organic compounds and the use of the said novel steroids in the production of 14.alpha., 17.alpha.-methylenedioxy-pregnane derivatives.

14.alpha.,17.alpha.-dihydroxy-17.beta.-substituted steroids

Growing community of inventors

Ridderkerk, Netherlands

Pieter Gijsbert Weber