881919-85-3Relevant articles and documents
Synthesis of tetrahydropyran-4-ones and thiopyran-4-ones from donor-substituted α-bromostyrene derivatives
Rosiak, Anna,Frey, Wolfgang,Christoffers, Jens
, p. 4044 - 4054 (2006)
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
Novel 3-Oxa-10-Aza-Phenanthrenes
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Page/Page column 15, (2010/11/28)
The compounds of formula I in which R1, R2 and R3 have the meanings as given in the description, are novel effective PDE4 inhibitors.