首页>
外国专利>
process for the production of 16 + 17 - e (cyclohexylmethylen) bis (oxy) - '- dihydroxy pregna - 1.4 - india - 3.10 - dion or 21 isobutyrate by transketalisation
process for the production of 16 + 17 - e (cyclohexylmethylen) bis (oxy) - '- dihydroxy pregna - 1.4 - india - 3.10 - dion or 21 isobutyrate by transketalisation