S. J. Halkes

Sterols. 38. Synthesis of 1,2.beta.-methylene-17.alpha.-acetoxy-9.beta.,10.alpha.-pregnanes, a class of potent progestational agents

S. J. Halkes, J. A. J. DEN HARTOG, L. Morsink et al. · Journal of Medicinal Chemistry · 1972 · 19 citations

Pharmaceutical Science, Hormonal Contraceptive, Altmetric Attention Score +16

Investigations on sterols. XXXV: Synthesis of 25‐hydroxycholecalciferol (Short communication)

S. J. Halkes, N. P. van Vliet · Recueil des Travaux Chimiques des Pays-Bas · 1969 · 16 citations

An improved synthesis of 1α-hydroxy Vitamin D3

Wim Nerinckx, Pierre J. De Clercq, C. Couwenhoven et al. · Tetrahedron · 1991 · 15 citations

Pharmacology, Pharmaceutical Chemistry, Synthetic Chemistry +2

Investigations on sterols XXVI: Synthesis and properties of 6‐substituted 9β,10α‐steroids

P. Westerhof, J. A. J. DEN HARTOG, S. J. Halkes · Recueil des Travaux Chimiques des Pays-Bas · 1965 · 14 citations

Bioorganic Chemistry, Organic Chemistry, Medicinal Chemistry +19

Investigations on sterols XXIV: Synthesis of some 6‐dehydro‐8α, 10α‐steroid hormone analogues and conversion of 8β, 10α‐ into 8α, 10α‐steroids

R. van Moorselaar, S. J. Halkes, E. Havinga · Recueil des Travaux Chimiques des Pays-Bas · 1965 · 12 citations

Bioorganic Chemistry, Oxysterol, Biochemistry +9