Inventor
WEEKS PAUL D
18 patents
Patents
18 patentsUS4443621AApr 17, 1984
p-Nitrophenyl 3-bromo-2,2-diethoxy-propionate and synthetic utility therefor
PFIZER6 citations73
US4435584AMar 6, 1984
Preparation of gamma-pyrones
PFIZER6 citations73
US4126624ANov 21, 1978
Preparation of gamma-pyrones from 3-substituted furans
PFIZER9 citations73
US4082717AApr 4, 1978
Preparation of gamma-pyrones
PFIZER7 citations73
US4468351AAug 28, 1984
Process for debromination of dibromopenicillanic acid and derivatives
PFIZER7 citations71
US4342697AAug 3, 1982
Preparation of gamma-pyrones
PFIZER9 citations69
US4387235AJun 7, 1983
Intermediates for the preparation of gamma-pyrones
PFIZER3 citations62
US4376204AMar 8, 1983
3-Hydroxy 2-methyl benzisothiazolines as intermediates in production of piroxicam
PFIZER3 citations62
US4368331AJan 11, 1983
3,4-Dihalo-tetrahydrophyran-5-one useful as intermediates for the preparation of gamma-pyrones
PFIZER2 citations62
US4323506AApr 6, 1982
Preparation of gamma-pyrones
PFIZER2 citations62
US4289704ASep 15, 1981
Preparation of gamma-pyrones
PFIZER3 citations62
US4191693AMar 4, 1980
Preparation of gamma-pyrones from 3-substituted furans
PFIZER4 citations62
US4147705AApr 3, 1979
Preparation of gamma-pyrones
PFIZER2 citations62
US4390709AJun 28, 1983
Preparation of gamma-pyrones
PFIZER4 citations58
US4530792AJul 23, 1985
Process and intermediates for preparation of 1,1-dioxopenicillanoyloxymethyl 6-beta-aminopenicillanate
PFIZER1 citations51
US4483982ANov 20, 1984
Processes for preparing piroxicam and intermediates leading thereto
PFIZER1 citations51
US4173572ANov 6, 1979
Preparation of gamma-pyrones from 3-substituted furans
PFIZER1 citations51
US4451661AMay 29, 1984
Preparation of gamma-pyrone intermediates
PFIZER1 citations48