公开(公告)号：AT76081T

公开(公告)日：1992-05-15

申请号：AT89909738

申请日：1989-09-09

Applicant: BASF AG

Inventor： SCHOELLKOPF ULRICH ,  GROTH ULRICH ,  LANGE MEINOLF

IPC: C07K1/02 ,  C07K1/12

公开(公告)号：AT102950T

公开(公告)日：1994-04-15

申请号：AT89910088

申请日：1989-09-09

Applicant: BASF AG

Inventor： SCHOELLKOPF ULRICH ,  GROTH ULRICH ,  LANGE MEINOLF

IPC: C07K1/02 ,  C07K1/12

公开(公告)号：DE3928510A1

公开(公告)日：1991-03-07

申请号：DE3928510

申请日：1989-08-29

Applicant: BASF AG

Inventor： SCHOELLKOPF ULRICH PROF DR ,  GROTH ULRICH DR ,  LANGE MEINOLF

IPC: C07D241/08

Abstract: Dialkoxy-pyrazine derivs. (I) are new. R1 = methyl and R2 = methyl or R1 = ethyl and R2 = methyl; R3 = methyl, ispropyl, isobutyl, sec.butyl, tert.butyl or benzyl. Prepn. of (I) is by reaction of (II) with HNR5R6 and a Lewis acid to give (III) followed by hydrolysis of prod. (III) and 6-alkylation. R5 = H or 1-6 alkyl. The 6-alkylation is carried out using a trimethyl-or triethyl-oxonium tetrafluoro -borate. USE/ADVANTAGE - Cpds. (I) are intermediates for amino acids and dipeptides. Cpds. (I) are more suitable as intermediates than the symmetrical dialkoxy-pyraxines described in DE 2934252.

公开(公告)号：DE58907247D1

公开(公告)日：1994-04-21

申请号：DE58907247

申请日：1989-09-09

Applicant: BASF AG

Inventor： SCHOELLKOPF ULRICH ,  GROTH ULRICH ,  LANGE MEINOLF

IPC: C07K1/02 ,  C07K1/12

Abstract: PCT No. PCT/EP89/01050 Sec. 371 Date Jul. 17, 1990 Sec. 102(e) Date Jul. 17, 1990 PCT Filed Sep. 9, 1989 PCT Pub. No. WO90/03386 PCT Pub. Date Apr. 5, 1990.Process for producing dipeptides from non-proteinogenic amino acids with terminal carbon atoms.

公开(公告)号：DE58901435D1

公开(公告)日：1992-06-17

申请号：DE58901435

申请日：1989-09-09

Applicant: BASF AG

Inventor： SCHOELLKOPF ULRICH ,  GROTH ULRICH ,  LANGE MEINOLF

IPC: C07K1/02 ,  C07K1/12