Louis I. Feldman
American Cyanamid
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Featured researches published by Louis I. Feldman.
Steroids | 1965
Karl J. Sax; C.E. Holmlund; Louis I. Feldman; R.H. Evans; Robert H. Blank; A.J. Shay; J.S. Schultz; M. Dann
Abstract Selected steroids give rise to 1α,2α-dihydroxylated products when fermented with nocardia corallina (ATCC 999). Preparation of the 1α,2α-dihydroxy derivatives of 17α-ethynyl-17β-hydroxyandrost-4-en-3-one (I), 9α-fluoro-11β,17β-dihydroxy-17α-methylandrost-4-en-3-one (VI), and 11β,21-dihydroxy-16α,17α-isopropylidenedioxypregn-4-ene-3,20-dione (XII) is described. Induction of the required enzymes by prior exposure of N. corallina to androstenedione was necessary to obtain the 1α,2α-dihydroxy products from I and XII.
Journal of the American Chemical Society | 1959
Seymour Bernstein; Robert H. Lenhard; William S. Allen; Milton Heller; Ruddy Littell; Stephen M. Stolar; Louis I. Feldman; Robert H. Blank
Journal of the American Chemical Society | 1959
Seymour Bernstein; John J. Brown; Louis I. Feldman; N. E. Rigler
Journal of Organic Chemistry | 1959
Seymour Bernstein; William E. Allen; Milton Heller; Robert H. Lenhard; Louis I. Feldman; Robert H. Blank
Journal of Organic Chemistry | 1964
Karl J. Sax; Robert H. Blank; R. H. Evans; Louis I. Feldman; C. E. Holmlund
Journal of the American Chemical Society | 1960
William S. Allen; Seymour Bernstein; Louis I. Feldman; Martin J. Weiss
Journal of the American Chemical Society | 1960
Seymour Bernstein; Milton Heller; Louis I. Feldman; William S. Allen; Robert H. Blank; Carl E. Linden
Archive | 1962
C.E. Holmlund; Louis I. Feldman; Karl J. Sax; Jr Ralph Henry Evans
Archive | 1959
Bernstein Seymour; Louis I. Feldman; William S. Allen; Robert H. Blank
Journal of the American Chemical Society | 1961
C. E. Holmlund; Louis I. Feldman; N. E. Rigler; B. E. Nielsen; R. H. Evans
