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Application

4950575/04, 1991-06-26

(22)

Actual filing date

1991-06-26

(45)

Published

1996-01-10

(72)

Inventor

Kurojan R.A.Snkhchjan G.M.Mkrtchjan A.K.Markosjan A.I.Engojan A.P.Dzhagatspanjan I.A.Asrjan A.B.Sukasjan R.S.

8-METHYL-8-PHENYL-3-OXOTHIAZOLIDINO-[3,2-A]-PIPERAZINE OR ITS HYDROCHLORIDE SHOWING TRANQUILIZING ACTION Russian patent published in 1996 - IPC

Abstract SU 1829361 A1

FIELD: organic chemistry. SUBSTANCE: product: 8-methyl-8-phenyl-3-oxothiazolidino-[3,2-a] -piperazine of the formula where Ph - phenyl, n = 0 or 1, empirical formula (n = 0) is C13H16N2OS, yield is 58.6%, m. p. is 125-126 C; empirical formula (n = 1) is C12H17N2OSC1, yield is 56.0%, m. p. is 250-252 C. Reagent 1: 2-methyl-2-phenyl-1,2,5,6-tetrahydropyrazine. Reagent 2: thioglycolic acid ethyl ester. Reaction conditions: boiling followed by addition of ether solution of hydrogen chloride. EFFECT: improved method of synthesis. 3 dwg, 1 tbl

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SU 1 829 361 A1

Authors

Kurojan R.A.

Snkhchjan G.M.

Mkrtchjan A.K.

Markosjan A.I.

Engojan A.P.

Dzhagatspanjan I.A.

Asrjan A.B.

Sukasjan R.S.

Dates

1996-01-10—Published

1991-06-26—Filed

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