881919-79-5Relevant articles and documents
Novel 3-Thia-10-Aza-Phenanthrene Derivatives
-
, (2008/06/13)
The compounds of formula I in which A, R1, R2 and R3 have the meanings as given in the description, are novel effective PDE4 inhibitors.
Synthesis of tetrahydropyran-4-ones and thiopyran-4-ones from donor-substituted α-bromostyrene derivatives
Rosiak, Anna,Frey, Wolfgang,Christoffers, Jens
, p. 4044 - 4054 (2007/10/03)
Tetrahydropyran-4-one and tetrahydrothiopyran-4-one derivatives with a 3-aryl substituent were synthesized by double-conjugate addition of water or H2S to divinyl ketones. These starting materials were prepared in two steps by conversion of lit