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(19)

RU

(11)

2 194 039

(13)

C2

(51)

IPC

(21) (22)

Application

2000100281/04, 1998-06-05

(24)

Start date

1998-06-05

(22)

Actual filing date

1998-06-05

(45)

Published

2002-12-10

(72)

Inventor

Majenfish PeterVidmer Khansjjurg

(73)

Holder

Novartis Ag

METHOD OF SYNTHESIS OF NITROGUANIDINE DERIVATIVES Russian patent published in 2002 - IPC

Abstract RU 2194039 C2

FIELD: organic chemistry. SUBSTANCE: invention relates to method of synthesis of compounds of the formula (I) by hydrolysis of compound of the formula (II) characterized that reaction is carried out at pH value from 8 to 12. This method ensures to obtain compounds of the formula (I) of higher purity. EFFECT: improved method of synthesis, increased yield. 7 cl, 2 tbl, 3 ex

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RU 2 194 039 C2

Authors

Majenfish Peter

Vidmer Khansjjurg

Dates

2002-12-10—Published

1998-06-05—Filed

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