CA1015752A - Process for the preparation of novel pyrido (2,3-d) pyrimidine-2,4(1h,3h)-diones - Google Patents

Process for the preparation of novel pyrido (2,3-d) pyrimidine-2,4(1h,3h)-diones

Info

Publication number
CA1015752A
CA1015752A CA176,022A CA176022A CA1015752A CA 1015752 A CA1015752 A CA 1015752A CA 176022 A CA176022 A CA 176022A CA 1015752 A CA1015752 A CA 1015752A
Authority
CA
Canada
Prior art keywords
diones
pyrimidine
preparation
novel pyrido
pyrido
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA176,022A
Other versions
CA176022S (en
Inventor
Kanji Noda
Akira Nakagawa
Hiroyuki Ide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisamitsu Pharmaceutical Co Inc
Original Assignee
Hisamitsu Pharmaceutical Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP6855172A external-priority patent/JPS5648513B2/ja
Priority claimed from JP8819272A external-priority patent/JPS5645915B2/ja
Priority claimed from JP48003122A external-priority patent/JPS4988899A/ja
Application filed by Hisamitsu Pharmaceutical Co Inc filed Critical Hisamitsu Pharmaceutical Co Inc
Application granted granted Critical
Publication of CA1015752A publication Critical patent/CA1015752A/en
Expired legal-status Critical Current

Links

CA176,022A 1972-07-07 1973-07-09 Process for the preparation of novel pyrido (2,3-d) pyrimidine-2,4(1h,3h)-diones Expired CA1015752A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6855172A JPS5648513B2 (en) 1972-07-07 1972-07-07
JP8819272A JPS5645915B2 (en) 1972-09-01 1972-09-01
JP48003122A JPS4988899A (en) 1972-12-28 1972-12-28

Publications (1)

Publication Number Publication Date
CA1015752A true CA1015752A (en) 1977-08-16

Family

ID=27275666

Family Applications (1)

Application Number Title Priority Date Filing Date
CA176,022A Expired CA1015752A (en) 1972-07-07 1973-07-09 Process for the preparation of novel pyrido (2,3-d) pyrimidine-2,4(1h,3h)-diones

Country Status (1)

Country Link
CA (1) CA1015752A (en)

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Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19940816