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ES2004298A6 - New 2-substd. 1,3,4-thiadiazolo(3,2-A) pyrimidine prepn. - Google Patents

New 2-substd. 1,3,4-thiadiazolo(3,2-A) pyrimidine prepn.

Info

Publication number
ES2004298A6
ES2004298A6 ES8701717A ES8701717A ES2004298A6 ES 2004298 A6 ES2004298 A6 ES 2004298A6 ES 8701717 A ES8701717 A ES 8701717A ES 8701717 A ES8701717 A ES 8701717A ES 2004298 A6 ES2004298 A6 ES 2004298A6
Authority
ES
Spain
Prior art keywords
substd
prepn
new
pyrimidine
thiadiazolo
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
ES8701717A
Other languages
Spanish (es)
Inventor
Ludwig Brusehaber
Dietrich Heydenhaub
Horst Holzel
Gunter Jaenicke
Gerhard Konetzke
Tilo Rothling
Ernst Tenor
Eckhard Thomas
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.)
Rodleben Pharma GmbH
Original Assignee
VEB DEUTSCHES HYDRIERWERK RODLEBEN
Deutsches Hydrierwerk Rodleben VEB
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
Application filed by VEB DEUTSCHES HYDRIERWERK RODLEBEN, Deutsches Hydrierwerk Rodleben VEB filed Critical VEB DEUTSCHES HYDRIERWERK RODLEBEN
Priority to ES8701717A priority Critical patent/ES2004298A6/en
Publication of ES2004298A6 publication Critical patent/ES2004298A6/en
Expired legal-status Critical Current

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  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Prepn. of new 2-amino-contg. gps. substd. 5,7,7-trimethyl-7H-1,3,4 -thiadiazola(3,2-a)pyrimidines of formula (I) comprises cyclising the corresp. 1-acylamino-2-thioxo- 1,2,3,4-tetrahydro pyrimidine in presence of polyphosphoric acid at 90-95 deg. C. In (I) R = aminophenyl, dimethyl aminophenyl, aminophenylmethyl, aminomethyl, phenylaminomethyl, phenylmethyl-methylaminomethyl aminophenoxy methyl
ES8701717A 1987-06-10 1987-06-10 New 2-substd. 1,3,4-thiadiazolo(3,2-A) pyrimidine prepn. Expired ES2004298A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES8701717A ES2004298A6 (en) 1987-06-10 1987-06-10 New 2-substd. 1,3,4-thiadiazolo(3,2-A) pyrimidine prepn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8701717A ES2004298A6 (en) 1987-06-10 1987-06-10 New 2-substd. 1,3,4-thiadiazolo(3,2-A) pyrimidine prepn.

Publications (1)

Publication Number Publication Date
ES2004298A6 true ES2004298A6 (en) 1988-12-16

Family

ID=8251297

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8701717A Expired ES2004298A6 (en) 1987-06-10 1987-06-10 New 2-substd. 1,3,4-thiadiazolo(3,2-A) pyrimidine prepn.

Country Status (1)

Country Link
ES (1) ES2004298A6 (en)

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Legal Events

Date Code Title Description
PC1A Transfer granted

Owner name: RODLEBEN PHARMA GMBH

FD1A Patent lapsed

Effective date: 20040601